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Anatomy 2 > OINAs > Flashcards

OINAs Flashcards

1
Q

Platysma insertion

A

Over the pectoralis major and deltoid muscles

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2
Q

Platysma action

A

It tenses the skin of the

neck

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3
Q

Origin of the zygomaticus major

A

The zygomatic arch

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4
Q

Insertion of the zygomaticus major

A

Into the corner of the mouth.

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5
Q

Action of the zygomaticus major

A

It pulls the angle of the mouth superiorly and posteriorly as in laughing.

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6
Q

Origin of the zygomaticus minor

A

The zygomatic bone and continues with orbicularis oculi on the lateral face of the levator labii superioris

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7
Q

Insertion of the zygomaticus minor

A

Into the outer part of the upper lip.

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8
Q

Action of the zygomaticus minor

A

It draws the upper lip backward, upward and outward as in smiling

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9
Q

Origin of extraocular rectus muscles

A

A common tendinous ring that surrounds the optic canal and superior orbital fissure

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10
Q

Insertion of extraocular rectus muscles

A

The anterior portion of the sclera.

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11
Q

Innervation of extraocular rectus muscles

A

(a) Superior
(b) Inferior
(c) Medial
(i) I –CN III
(d) Lateral
(i) I – CN VI

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12
Q

Origin of superior oblique

A

The sphenoid bone passes through the trochlea (cartilaginous sling)

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13
Q

Insertion of superior oblique

A

The posterior lateral aspect of the sclera

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14
Q

Innervation of superior oblique

A

CN IV

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15
Q

Origin of inferior oblique

A

The anteromedial aspect of the floor of the orbit

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16
Q

Insertion of inferior oblique

A

The posterolateral aspect of the sclera

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17
Q

Innervation of inferior oblique

A

CN III

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18
Q

All facial muscles are innervated by the ____

A

All facial muscles are innervated by the Facial nerve

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19
Q

Action of Orbicularis oris

A

Encircles the mouth, causes mouth closure, pursing or puckering of lips,
chewing and speaking.

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20
Q

Action of the buccinator

A

Located in the cheek and is important for mastication. It maintains the skin against the teeth during chewing. It aids with whistling and sucking.

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21
Q

Origin of platysma

A

The skin of the face and mandible and descends

into the superficial fascia of the neck

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22
Q

Insertion of platysma

A

The pectoralis major and deltoid muscles

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23
Q

Action of platysma

A

Tenses the skin of the neck.

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24
Q

Origin of temporalis muscle

A

Floor of the temporal fossa

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25
Q

Insertion of temporalis muscle

A

Coronoid process of the

mandible

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26
Q

Innervation of temporalis muscle

A

Mandibular nerve, V3

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27
Q

Action of temporalis muscle

A

Elevation and retraction of the mandible for mastication

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28
Q

Origin of masseter muscle

A

Zygomatic arch

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29
Q

Insertion of masseter muscle

A

Lateral surface of the ramus, coronoid process and angle of the mandible

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30
Q

Innervation of masseter muscle

A

Mandibular nerve, V3

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31
Q

Action of masseter muscle

A

Elevation of mandible for mastication

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32
Q

Origin of lateral pterygoid

A

Greater wing of the sphenoid and lateral pterygoid plate

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33
Q

Insertion of lateral pterygoid

A

Neck of the mandible and disc of the TMJ

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34
Q

Innervation of lateral pterygoid

A

Mandibular nerve, V3

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35
Q

Action of lateral pterygoid

A

Bilaterally protrudes mandible; Unilaterally moves mandible side to side

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36
Q

Origin of medial pterygoid

A

Lateral pterygoid plate, maxilla

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37
Q

Insertion of medial pterygoid

A

Medial surface of the angle of the mandible

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38
Q

Innervation of medial pterygoid

A

Mandibular nerve, V3

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39
Q

Action of medial pterygoid

A

Elevates and protrudes the mandible; unilaterally moves the mandible side to side

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40
Q

Origin of trapezius

A

External occipital protuberance, ligamentum nuchae, spinous processes
of C7 to T12

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41
Q

Insertion of trapezius

A

Posterior border of lateral third of the clavicle, acromion process, and spine of the scapula

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42
Q

Innervation of trapezius

A

Spinal root of the accessory n. CN XI

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43
Q

Action of trapezius

A

Elevation from the upper fibers, retraction from the middle fibers and depression from the lower fibers

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44
Q

Origin of latissimus dorsi

A

Spinous processes of the vertebrae T7-L5, thoracolumbar fascia, iliac crest, inferior 3 to 4 ribs and inferior angle of the scapula

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45
Q

Insertion of latissimus dorsi

A

Medial lip of intertubercular groove of the humerus (anterior to teres major)

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46
Q

Innervation of latissimus dorsi

A

Thoracodorsal n

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47
Q

Action of latissimus dorsi

A

Extends, adducts and medially rotates the humerus, elevates the body when climbing

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48
Q

Origin of levator scapulae

A

Posterior tubercles of transverse processes of C1 to C4 vertebrae

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49
Q

Insertion of levator scapulae

A

Superior part of the medial border of the scapula

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50
Q

Innervation of levator scapulae

A

Dorsal scapular nerve (C4-5)

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51
Q

Action of levator scapulae

A

Elevates scapula, rotates head to the same side

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52
Q

Origin of rhomboid major

A

Spinous process of T2 to T5 vertebrae

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53
Q

Insertion of rhomboid major

A

Medial border of the scapula from the level of the spine to the inferior angle

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54
Q

Innervation of rhomboid major

A

Dorsal scapular n. (C4-5)

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55
Q

Action of rhomboid major

A

Retracts and downwardly rotates the scapula

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56
Q

Origin of rhomboid minor

A

Spinous processes of C7 and T 1 and the ligamentum nuchae

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57
Q

Insertion of rhomboid minor

A

Medial border of the scapula from the level of the spine to the inferior angle

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58
Q

Innervation of rhomboid minor

A

Dorsal scapular n. (C4-5)

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59
Q

Action of rhomboid minor

A

Retracts and downwardly rotates the scapula

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60
Q

Origin of serratus posterior superior

A

Ligamentum nuchae, spinous process of C7 thru T3

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61
Q

Insertion of serratus posterior superior

A

2nd to 5th ribs

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62
Q

Innervation of serratus posterior superior

A

Ventral primary rami of first 3 to 4 thoracic nerves

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63
Q

Action of serratus posterior superior

A

Elevates the superior 4 ribs to increase the size of the thorax

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64
Q

Origin of serratus posterior inferior

A

Spinous processes of T11 thru L2

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65
Q

Insertion of serratus posterior inferior

A

The inferior three or four ribs

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66
Q

Innervation of serratus posterior inferior

A

Ventral primary rami of last 4 thoracic nerves

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67
Q

Action of serratus posterior inferior

A

Depress the inferior 3 to 4 ribs to prevent superior pull by the diaphragm

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68
Q

Origin of splenius capitis

A

Ligamentum nuchae and spinous processes of C7 to T3

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69
Q

Insertion of splenius capitis

A

Mastoid process, occipital bone

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70
Q

Innervation of splenius capitis

A

Dorsal primary rami

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71
Q

Action of splenius capitis

A

Rotate the head and neck to the same side; neck and head extension

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72
Q

Origin of splenius cervicis

A

Spinous processes of T3 to T6

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73
Q

Insertion of splenius cervicis

A

Transverse processes of C1 to C4

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74
Q

Innervation of splenius cervicis

A

Dorsal primary rami

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75
Q

Action of splenius cervicis

A

Rotate the head and neck to the same side; extend head and neck

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76
Q

Origin of the erector spinae muscles

A

Broad tendon that attaches to the iliac crest, sacrum, sacroiliac ligaments, and sacral and inferior lumbar spinous processes

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77
Q

Innervation of the erector spinae muscles

A

Dorsal primary rami

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78
Q

What are the three vertical columns from lateral to medial?

A
  1. Iliocostalis – lateral column
  2. Longissimus – intermediate column
  3. Spinalis – medial column
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79
Q

What are the 3 parts of the Iliocostalis?

A
  • Lumborum
  • Thoracis
  • Cervicis
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80
Q

Origin of the lumborum

A

Iliac crest

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81
Q

Insertion of the lumborum

A

Attaches into the angles of the inferior six ribs

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82
Q

Origin of the thoracis

A

The six lower ribs

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83
Q

Insertion of the thoracis

A

Attaches to the six upper ribs

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84
Q

Origin of the cervicis

A

Arises from the six upper ribs

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85
Q

Insertion of the cervicis

A

Attaches to the transverse processes of the lower cervical vertebrae 4 to 6

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86
Q

What are the 3 parts of the longissimus?

A
  • Thoracis
  • Cervicis
  • Capitis
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87
Q

Origin of thoracis

A

Arises from the lower lumbar spinous processes and sacrum

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88
Q

Insertion of thoracis

A

Attaches to the lower nine ribs and associated transverse processes

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89
Q

Origin of cervicis

A

Arises from transverse processes of T1-4 or 6

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90
Q

Insertion of cervicis

A

Transverse processes of C2-6

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91
Q

Origin of spinalis

A

Spinous processes of T11-L2

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92
Q

Insertion of spinalis

A

Spinous process of the upper 4 to 8 thoracic vertebrae

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93
Q

Action of spinalis

A

Extensors of the vertebral column

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94
Q

Origin of semispinalis capitis

A

Arises from the transverse processes of T1 to T6

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95
Q

Insertion of semispinalis capitis

A

Occipital bone

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96
Q

Action of semispinalis capitis

A

Bilaterally extends the head, and unilaterally it rotates the head to the same side

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97
Q

Innervation of semispinalis capitis

A

Dorsal rami of the cervical spinal nerves

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98
Q

Origin of multifidus

A

The vertebral arches of C2 to S4

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99
Q

Insertion of multifidus

A

On the spinous processes,

spanning 1 to 3 vertebrae

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100
Q

Action of multifidus

A

Unilaterally – flexes the trunk laterally, rotates vertebra to the opposite side. Bilaterally – extends the trunk

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101
Q

Innervation of multifidus

A

Dorsal rami of the spinal nerves

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102
Q

Origin of the rotatores

A

The transverse process of one vertebrae

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103
Q

Insertion of the rotatores

A

The base of the spinous process of the superior vertebrae

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104
Q

Action of the rotatores

A

Rotation of the superior vertebrae to opposite side

Functionally, they probably serve a proprioceptive role rather than biomechanical role

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105
Q

Innervation of the rotatores

A

Dorsal rami of spinal nerves

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106
Q

Origin of rectus capitis posterior major

A

Spinous process of C2

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107
Q

Insertion of rectus capitis posterior major

A

Occipital bone, inferior to the inferior nuchal line

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108
Q

Innervation of rectus capitis posterior major

A

Suboccipital n.

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109
Q

Action of rectus capitis posterior major

A

Unilateral – rotates the head to the same side.

Bilaterally – extension of the head

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110
Q

Origin of rectus capitis posterior minor

A

Posterior arch of C 1

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111
Q

Insertion of rectus capitis posterior minor

A

Occipital bone, inferior to the inferior nuchal line

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112
Q

Innervation of rectus capitis posterior minor

A

Suboccipital n

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113
Q

Action of rectus capitis posterior minor

A

Unilateral – rotates the head to the same side.

Bilaterally – extension of the head

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114
Q

Origin of obliquus capitis inferior

A

Spinous process of C2

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115
Q

Insertion of obliquus capitis inferior

A

Transverse process of C 1

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116
Q

Innervation of obliquus capitis inferior

A

Suboccipital n.

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117
Q

Action of obliquus capitis inferior

A

Rotate the head to the same side

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118
Q

Origin of obliquus capitis superior

A

Transverse process of C 1

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119
Q

Insertion of obliquus capitis superior

A

Posterior aspect of the occipital bone

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120
Q

Innervation of obliquus capitis superior

A

Suboccipital n

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121
Q

Action of obliquus capitis superior

A

Extend the head bilaterally, lateral flex the head unilaterally

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122
Q

Origin of the superior oblique of the longus colli

A

Anterior tubercles of the transverse processes of C3 to C5

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123
Q

Insertion of the superior oblique of the longus colli

A

Anterolateral surface of anterior tubercle of C1

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124
Q

Innervation of the superior oblique of the longus colli

A

Anterior rami of C2 to C4

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125
Q

Action of the superior oblique of the longus colli

A

Intersegmental stabilization; assists flexion

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126
Q

Origin of the vertical intermediate of the longus colli

A

Anterior aspect of the bodies of C5 to T3

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127
Q

Insertion of the vertical intermediate of the longus colli

A

Anterior aspect of the bodies of C2 to C4

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128
Q

Innervation of the vertical intermediate of the longus colli

A

Anterior rami of C2 to C6

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129
Q

Action of the vertical intermediate of the longus colli

A

Intersegmental stabilization; assists flexion

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130
Q

Origin of the inferior obliqueof the longus colli

A

Anterior tubercles of the transverse processes of C5 and C6

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131
Q

Insertion of the inferior obliqueof the longus colli

A

Anterior aspects of bodies of T1 to T3

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132
Q

Innervation of the inferior obliqueof the longus colli

A

Anterior rami of C5 and C6

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133
Q

Action of the inferior obliqueof the longus colli

A

Intersegmental stabilization; assists flexion

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134
Q

Origin of rectus capitis anterior

A

Anterior surface of the lateral mass and root of the transverse process of C1

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135
Q

Insertion of rectus capitis anterior

A

Inferior surface of the basilar part of the occipital bone

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136
Q

Innervation of rectus capitis anterior

A

Anterior rami of C1 and C2

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137
Q

Action of rectus capitis anterior

A

Intersegmental stabilization; assists flexion

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138
Q

Origin of rectus capitis lateralis

A

Superior surface of transverse process of C1

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139
Q

Insertion of rectus capitis lateralis

A

Inferior surface of the jugular process of the occipital bone

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140
Q

Innervation of rectus capitis lateralis

A

Anterior rami of C1and C2

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141
Q

Action of rectus capitis lateralis

A

Intersegmental stabilization; assists flexion

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142
Q

Origin of scalenus posterior

A

Posterior tubercles of transverse processes of C4 to C6

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143
Q

Insertion of scalenus posterior

A

Outer surface of 2nd rib behind the tubercle and attachment of serratus anterior

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144
Q

Innervation of scalenus posterior

A

Anterior rami of C5 to C7

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145
Q

Action of scalenus posterior

A

Lateral flexion of neck to same side

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146
Q

Origin of scalenus medius

A

Transverse processes of C1 and C2 and anterior aspect of posterior tubercles of C3 to C7

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147
Q

Insertion of scalenus medius

A

Upper surface of 1st rib between the tubercle and groove for the subclavian artery

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148
Q

Innervation of scalenus medius

A

Anterior rami of C3 to C8

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149
Q

Action of scalenus medius

A

Lateral flexion of neck to same side

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150
Q

Origin of scalenus anterior

A

Musculotendinous fascicles from the anterior tubercles of the transverse processes of
C3 to C6

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151
Q

Insertion of scalenus anterior

A

To scalene tubercle on the inner border of the 1st rib and a ridge on the uppersurface of
the rib, anterior to the groove for the subclavian artery

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152
Q

Innervation of scalenus anterior

A

Anterior rami of C4 to C6

153
Q

Action of scalenus anterior

A

Lateral flexion of neck to same side; flexion of neck acting bilaterally

154
Q

Origin of longus capitis

A

Anterior tubercles of transverse processes of C3 to C6

155
Q

Insertion of longus capitis

A

Inferior surface of the basilar part of the occipital bone

156
Q

Innervation of longus capitis

A

Anterior rami of C1 to C3

157
Q

Action of longus capitis

A

Flexion; assists intersegmental stabilization

158
Q

Origin of sternocleidomastoid

A

From two heads, manubrium and medial 1/3rd of clavicle

159
Q

Insertion of sternocleidomastoid

A

Mastoid process

160
Q

Innervation of sternocleidomastoid

A

Spinal accessory nerve (CN XI)

161
Q

Action of sternocleidomastoid

A

Unilaterally turns chin to opposite side bilaterally flexes neck

162
Q

Origin of anterior belly of digastric

A

Inferior surface of the mandible

163
Q

Origin of posterior belly of digastric

A

Mastoid process

164
Q

Insertion of digastric

A

Hyoid bone

165
Q

Innervation of digastric

A

Mandibular and facial

166
Q

Action of digastric

A

Raise the hyoid, lower the mandible

167
Q

Origin of the mylohyoid

A

Mandible

168
Q

Insertion of the mylohyoid

A

Hyoid bone

169
Q

Innervation of the mylohyoid

A

Nerve to the Mylohyoid

170
Q

Action of the mylohyoid

A

Raise the hyoid and floor of mouth

171
Q

Origin of the omohyoid

A

Superior border of the scapula

172
Q

Insertion of the omohyoid

A

Hyoid bone

173
Q

Innervation of the omohyoid

A

C1, C2, C3 via the ansa cervicalis

174
Q

Action of the omohyoid

A

Depresses hyoid bone

175
Q

Origin of sternohyoid

A

Manubrium and clavicle

176
Q

Insertion of sternohyoid

A

Hyoid bone

177
Q

Innervation of sternohyoid

A

C1, C2, C3, via the ansa cervicalis

178
Q

Action of sternohyoid

A

Depresses hyoid bone

179
Q

Origin of sternothyroid

A

Manubrium

180
Q

Insertion of sternothyroid

A

Thyroid cartilage

181
Q

Innervation of sternothyroid

A

C1, C2, C3, via the ansa cervicalis

182
Q

Action of sternothyroid

A

Pull larynx inferiorly

183
Q

Origin of thyrohyoid

A

Thyroid cartilage

184
Q

Insertion of thyrohyoid

A

Hyoid bone

185
Q

Innervation of thyrohyoid

A

C1

186
Q

Action of thyrohyoid

A

Elevate larynx in swallowing

187
Q

Origin of stylohyoid

A

Styloid process

188
Q

Insertion of stylohyoid

A

Hyoid bone

189
Q

Innervation of stylohyoid

A

Facial

190
Q

Action of stylohyoid

A

Pull hyoid posteriorly and superiorly

191
Q

Origin of anterior scalene

A

Transverse processes of C3-C6

192
Q

Insertion of anterior scalene

A

First rib

193
Q

Innervation of anterior scalene

A

Cervical ventral rami

194
Q

Action of anterior scalene

A

Elevate the first rib, unilaterally laterally flex neck, bilaterally assist with forward neck
flexion

195
Q

Origin of middle scalene

A

Transverse processes of C2-C7

196
Q

Insertion of middle scalene

A

First rib

197
Q

Innervation of middle scalene

A

Cervical ventral rami

198
Q

Action of middle scalene

A

Unilaterally laterally flexes neck, elevates first rib

199
Q

Origin of posterior scalene

A

Transverse process of C4-C6

200
Q

Insertion of posterior scalene

A

Second rib

201
Q

Innervation of posterior scalene

A

Cervical ventral rami

202
Q

Action of posterior scalene

A

Unilaterally laterally flexes neck, elevates second rib

203
Q

Origin of the deltoid

A

Lateral third of the clavicle, acromion and spine of the scapula

204
Q

Insertion of the deltoid

A

Deltoid tuberosity of the humerus

205
Q

Innervation of the deltoid

A

Axillary n.

206
Q

Action of the deltoid

A
  • Anterior part flexes and medially rotates humerus
  • Middle part abducts the humerus
  • Posterior part extends and lateral rotates the humerus
207
Q

Origin of teres major

A

Dorsal surface of the inferior angle of the scapula

208
Q

Insertion of teres major

A

Medial lip of the intertubercular groove of the humerus

209
Q

Innervation of teres major

A

Lower subscapular n.

210
Q

Action of teres major

A

Adducts and medially rotates, extends arm

211
Q

Origin of supraspinatus

A

Supraspinatus fossa of the scapula

212
Q

Insertion of supraspinatus

A

Greater tubercle of the humerus, superior facet

213
Q

Innervation of supraspinatus

A

suprascapular n

214
Q

Action of supraspinatus

A

Abducts the arm and assist with humerus position within the glenoid fossa

215
Q

Origin of infraspinatus

A

Infraspinatus fossa of the scapula

216
Q

Insertion of infraspinatus

A

Greater tubercle of the humerus, middle facet

217
Q

Innervation of infraspinatus

A

Suprascapular n.

218
Q

Action of infraspinatus

A

Lateral rotator

219
Q

Origin of teres minor

A

Superior part of the lateral boarder of the scapula

220
Q

Insertion of teres minor

A

Greater tubercle of the humerus, inferior facet

221
Q

Innervation of teres minor

A

Axillary n.

222
Q

Action of teres minor

A

Lateral rotator

223
Q

Origin of the subscapularis

A

Subscapular fossa

224
Q

Insertion of the subscapularis

A

Lesser tubercle of the humerus

225
Q

Innervation of the subscapularis

A

Upper and lower subscapular n.

226
Q

Action of the subscapularis

A

Medially rotates and adducts

227
Q

Origin of pectoralis major

A

Clavicular Head - Anterior half of the medial aspect of the clavicle Sternocostal
Head - Sternum, Superior six costal cartilages, aponeurosis of the external oblique
muscle

228
Q

Insertion of pectoralis major

A

Lateral lip of the intertubercular groove of the Humerus

229
Q

Innervation of pectoralis major

A

Lateral and medial pectoral n.

230
Q

Action of pectoralis major

A

Adducts and medially rotates humerus

231
Q

Origin of pectoralis minor

A

Ribs 3 to 5 near the costal cartilages

232
Q

Insertion of pectoralis minor

A

Coracoid process of the scapula

233
Q

Innervation of pectoralis minor

A

Medial pectoral n.

234
Q

Action of pectoralis minor

A

Stabilizes scapula against thoracic wall

235
Q

Origin of subclavius

A

Rib, 1 and costal cartilage

236
Q

Insertion of subclavius

A

Inferior surface of the middle third of the clavicle

237
Q

Innervation of subclavius

A

Nerve to the subclavius

238
Q

Action of subclavius

A

Anchors and depresses clavicle

239
Q

Origin of serratus anterior

A

Upper eight ribs

240
Q

Insertion of serratus anterior

A

Anterior surface medial boarder of the scapula

241
Q

Innervation of serratus anterior

A

Long thoracic n.

242
Q

Action of serratus anterior

A

Protracts and upwardly rotates the scapula

243
Q

Origin of biceps brachii long head

A

Supraglenoid tubercle of the scapula

244
Q

Insertion of biceps brachii

A

tuberosity of the radius and bicipital aponeurosis

245
Q

Origin of biceps brachii short head

A

Coracoid process of the scapula

246
Q

Innervation of biceps brachii

A

Musculocutaneous nerve

247
Q

Action of biceps brachii

A

Flexes and supinates forearm

248
Q

Origin of coracobrachialis

A

Coracoid process of the scapula

249
Q

Insertion of coracobrachialis

A

Middle third of the medial side of the humerus

250
Q

Innervation of coracobrachialis

A

Musculocutaneous nerve

251
Q

Action of coracobrachialis

A

Flexion and adduction of the arm

252
Q

Origin of brachialis

A

Distal half of anterior surface of the humerus

253
Q

Insertion of brachialis

A

Coronoid process and tuberosity of the ulna

254
Q

Innervation of brachialis

A

Musculocutaneous nerve

255
Q

Action of brachialis

A

Flexes forearm

256
Q

Origin of triceps long head

A

Infraglenoid tubercle of the scapula

257
Q

Origin of triceps medial head

A

Posterior surface of the humerus, inferior to the

spiral groove

258
Q

Origin of triceps lateral head

A

Posterior surface of the humerus, superior to the spiral groove

259
Q

Insertion of triceps

A

Olecranon process of the ulna

260
Q

Innervation of triceps

A

Radial nerve

261
Q

Action of triceps

A

Extends the forearm

262
Q

Origin of anconeus

A

Lateral epicondyle of the humerus

263
Q

Insertion of anconeus

A

Lateral surface of the Olecranon process and posterior surface of the ulna

264
Q

Innervation of anconeus

A

Radial n

265
Q

Action of anconeus

A

Extension of the forearm

266
Q

Origin of supinator

A

Lateral epicondyle of the humerus

267
Q

Insertion of supinator

A

Lateral, posterior and anterior surfaces of the proximal third of the radius

268
Q

Innervation of supinator

A

Deep branch of the radial nerve

269
Q

Action of supinator

A

Supinates the forearm

270
Q

Origin of brachioradialis

A

Proximal two-thirds of the lateral supracondylar ridge of humerus

271
Q

Insertion of brachioradialis

A

Lateral surface of the distal end of the radius

272
Q

Innervation of brachioradialis

A

Radial nerve

273
Q

Action of brachioradialis

A

Flexes forearm

274
Q

Origin of pronator teres

A

Medial epicondyle of the humerus and coronoid process of the ulna

275
Q

Insertion of pronator teres

A

Middle of lateral surface of the radius

276
Q

Innervation of pronator teres

A

Median n

277
Q

Action of pronator teres

A

Pronates and flexes forearm

278
Q

Origin of flexor carpi radialis

A

Medial epicondyle of humerus

279
Q

Insertion of flexor carpi radialis

A

Base of the second metacarpal bone

280
Q

Innervation of flexor carpi radialis

A

Median nerve

281
Q

Action of flexor carpi radialis

A

Flexes and radial deviates hand

282
Q

Origin of palmaris longus

A

Medial epicondyle of humerus

283
Q

Insertion of palmaris longus

A

Flexor retinaculum and palmar aponeurosis

284
Q

Innervation of palmaris longus

A

Median nerve

285
Q

Action of palmaris longus

A

Flexes hand

286
Q

Origin of flexor digitorum superficialis

A

Medial epicondyle of the humerus, coronoid process of the ulna and the anterior border of the radius

287
Q

Insertion of flexor digitorum superficialis

A

Bodies of the middle phalanges of the medial four digits

288
Q

Innervation of flexor digitorum superficialis

A

Median nerve

289
Q

Action of flexor digitorum superficialis

A

Flexes the middle phalanges of the medial four digits, the proximal phalanges and hand

290
Q

Origin of flexor carpi ulnaris

A

Medial epicondyle of humerus, olecranon and ulna

291
Q

Insertion of flexor carpi ulnaris

A

Pisiform, hook of the hamate and 5th metacarpal

292
Q

Innervation of flexor carpi ulnaris

A

Ulnar nerve

293
Q

Action of flexor carpi ulnaris

A

Flexes hand, ulnar deviates hand

294
Q

Origin of flexor digitorum profundus

A

Proximal three-fourths of medial and anterior surface of the ulna and interosseous membrane

295
Q

Insertion of flexor digitorum profundus

A

Base of the distal phalanges of the medial four digits

296
Q

Innervation of flexor digitorum profundus

A

Medial part is ulnar Lateral part is median

297
Q

Action of flexor digitorum profundus

A

Flexes the distal phalanges of the medial four digits

298
Q

Origin of flexor pollicis longus

A

Anterior surface of the radius and interosseous membrane

299
Q

Insertion of flexor pollicis longus

A

Base of the distal phalanx of the thumb

300
Q

Innervation of flexor pollicis longus

A

Anterior interosseous nerve

301
Q

Action of flexor pollicis longus

A

Flexes phalanges of thumb

302
Q

Origin of pronator quadratus

A

Distal, anterior surface of ulna

303
Q

Insertion of pronator quadratus

A

Distal, anterior surface of the radius

304
Q

Innervation of pronator quadratus

A

Anterior interosseous nerve

305
Q

Action of pronator quadratus

A

Pronates the forearm

306
Q

Origin of extensor carpi ulnaris

A

Lateral epicondyle

307
Q

Insertion of extensor carpi ulnaris

A

Base of the 5th metacarpal

308
Q

Innervation of extensor carpi ulnaris

A

Posterior Interosseous nerve

309
Q

Action of extensor carpi ulnaris

A

Extends and ulnar deviates the wrist

310
Q

Origin of extensor carpi radialis brevis

A

Lateral epicondyle

311
Q

Insertion of extensor carpi radialis brevis

A

Base of the 3rd metacarpal

312
Q

Innervation of extensor carpi radialis brevis

A

Deep radial nerve

313
Q

Action of extensor carpi radialis brevis

A

Extends and radial deviates hand

314
Q

Origin of extensor carpi radialis longus

A

Lateral supracondylar ridge

315
Q

Insertion of extensor carpi radialis longus

A

Base of the 2nd metacarpal

316
Q

Innervation of extensor carpi radialis longus

A

Radial nerve

317
Q

Action of extensor carpi radialis longus

A

Extends and radial deviates hand

318
Q

Origin of extensor digitorum

A

Lateral epicondyle of the humerus

319
Q

Insertion of extensor digitorum

A

Extensor expansions

320
Q

Innervation of extensor digitorum

A

Posterior Interosseous nerve

321
Q

Action of extensor digitorum

A

Extend fingers digits 2 through 5

322
Q

Origin of Extensor digiti minimi

A

Ulnar side extensor digitorum

323
Q

Insertion of Extensor digiti minimi

A

Extensor expansion of digit 5

324
Q

Innervation of Extensor digiti minimi

A

Posterior Interosseous nerve

325
Q

Action of Extensor digiti minimi

A

Extends the 5th digit

326
Q

Origin of Abductor pollicis longus

A

Posterior surface of the middle ulna, radius and interosseous membrane

327
Q

Insertion of Abductor pollicis longus

A

Base of the 1st metacarpal

328
Q

Innervation of Abductor pollicis longus

A

Posterior Interosseous nerve

329
Q

Action of Abductor pollicis longus

A

Abducts thumb

330
Q

Origin of Extensor pollicis brevis

A

Middle one third posterior surface or radius and interosseous membrane

331
Q

Insertion of Extensor pollicis brevis

A

Base of the proximal phalanx of the thumb

332
Q

Innervation of Extensor pollicis brevis

A

Posterior Interosseous nerve

333
Q

Action of Extensor pollicis brevis

A

Extends thumb

334
Q

Origin of Extensor pollicis longus

A

Middle one third of the posterior surface of the ulna and interosseous membrane

335
Q

Insertion of Extensor pollicis longus

A

Base of the distal phalanx of the thumb

336
Q

Innervation of Extensor pollicis longus

A

Posterior interosseous nerve

337
Q

Action of Extensor pollicis longus

A

Extends the thumb

338
Q

Origin of extensor indicis

A

Posterior surface of the ulna and interosseous membrane

339
Q

Insertion of extensor indicis

A

Extensor digitorum tendon to index finger

340
Q

Innervation of extensor indicis

A

Posterior interosseous nerve

341
Q

Action of extensor indicis

A

Extends the index finger

342
Q

Origin of Abductor pollicis brevis

A

Scaphoid and trapezium

343
Q

Insertion of Abductor pollicis brevis

A

Lateral side of base of proximal phalanx

344
Q

Innervation of Abductor pollicis brevis

A

Recurrent branch of the Median nerve

345
Q

Action of Abductor pollicis brevis

A

Abducts thumb at carpometacarpal joint

346
Q

Origin of Flexor pollicis brevis

A

Flexor retinaculum and trapezium

347
Q

Insertion of Flexor pollicis brevis

A

Lateral side of base of proximal phalanx

348
Q

Innervation of Flexor pollicis brevis

A

Recurrent branch of the Median nerve

349
Q

Action of Flexor pollicis brevis

A

Flex thumb

350
Q

Origin of opponens pollicis

A

Flexor retinaculum and trapezium

351
Q

Insertion of opponens pollicis

A

Lateral side of the first metacarpal

352
Q

Innervation of opponens pollicis

A

Recurrent branch of the Median nerve

353
Q

Action of opponens pollicis

A

Oppose thumb

354
Q

Origin of Abductor digiti minimi

A

Pisiform

355
Q

Insertion of Abductor digiti minimi

A

Base of the proximal phalanx of the 5th digit

356
Q

Innervation of Abductor digiti minimi

A

Ulnar nerve

357
Q

Action of Abductor digiti minimi

A

Abduction

358
Q

Origin of Flexor digiti minimi brevis

A

Hamate

359
Q

Insertion of Flexor digiti minimi brevis

A

Base of the proximal phalanx of the 5th digit

360
Q

Innervation of Flexor digiti minimi brevis

A

Ulnar nerve

361
Q

Action of Flexor digiti minimi brevis

A

Flexes 5th digit

362
Q

Origin of Adductor pollicis oblique head

A

Carpal bones and bases of metacarpals 2 and 3

363
Q

Origin of Adductor pollicis transverse head

A

Shaft of the 3rd metacarpal

364
Q

Insertion of Adductor pollicis

A

Base of the proximal phalanx of the thumb

365
Q

Innervation of Adductor pollicis

A

Ulnar nerve

366
Q

Action of Adductor pollicis

A

Adduct thumb

367
Q

Origin of the lumbricals

A

Tendons of the flexor digitorum profundus

368
Q

Insertion of the lumbricals

A

Lateral side of the extensor expansions

369
Q

Innervation of the lumbricals

A

Lumbricals 1 and 2 - median nerve

Lumbricals 3 and 4 - ulnar nerve

370
Q

Action of the lumbricals

A

Flex the MP joints and extend the proximal IP joints

371
Q

Origin of Palmar interossei

A

Sides of metacarpal bones

372
Q

Insertion of Palmar interossei

A

Base of the proximal phalanges and extensor expansion

373
Q

Innervation of Palmar interossei

A

Ulnar nerve

374
Q

Action of Palmar interossei

A

Adduct fingers

375
Q

Origin of Dorsal interossei

A

Arise via two heads from adjacent sides of the metacarpals between which they lie.

376
Q

Insertion of Dorsal interossei

A

Proximal phalanges and extensor expansion

377
Q

Innervation of Dorsal interossei

A

Ulnar nerve

378
Q

Action of Dorsal interosse

A

Abduct fingers at MP joints

Anatomy 2 (9 decks)

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