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Gross Anatomy > Gross Anatomy Exam 1: Muscles > Flashcards

Gross Anatomy Exam 1: Muscles Flashcards

1
Q

Insertion of the descending trapezius

A

lateral 1/3 clavicle

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2
Q

Innervation of the trapezius muscle

A
  • Cervical plexus C3-C4

- Spinal accessory nerve (C.N. XI)

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3
Q

Action of the descending trapezius

A

Elevate scapula

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4
Q

Blood supply of the trapezius muscle

A

Transverse cervical artery

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5
Q

Origin of the transverse trapezius

A

Spinous process of T1-T4

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6
Q

Insertion of transverse trapezius

A

Acromion of scapula

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7
Q

Action of transverse trapezius

A

Retract scapula

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8
Q

Origin of Ascending trapezius

A

Spinous process of T5-T12

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9
Q

Insertion of ascending trapezius

A

Spine of scapula

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10
Q

Origin of levator scapulae

A

Transverse process of C1-C4

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11
Q

Insertion of levator scapulae

A

Superior angle of scapula

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12
Q

Innervation of Levator Scapulae

A

Dorsal Scapular Nerve (C4-C5)

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13
Q

Origin of Rhomboid Minor

A

Spinous process of C7 - T1

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14
Q

Insertion of Rhomboid Minor

A

Root of Spine of Scapula

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15
Q

Innervation of Rhomboid Minor

A

Dorsal Scapular Nerve (C5)

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16
Q

Action of Rhomboid Minor

A

-Retract scapula, anchor scapula to thoracic wall, depress glenoid cavity

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17
Q

Origin of Rhomboid Major

A

Spinous process of T2-T5

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18
Q

Insertion of Rhomboid Major

A

Medial border of scapula below the spine of scapula

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19
Q

Innervation of Rhomboid Major

A

Dorsal Scapular Nerve (C4-C5)

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20
Q

Action of Rhomboid Major

A

Retract scapula, steady scapula to thoracic wall, depress glenoid cavity

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21
Q

Extrinsic muscles of the back

A

Trapezius, Levator Scapulae, Latissimus Dorsi, Rhomboid Minor and Major

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22
Q

Superficial Intrinsic muscles of the back

A

Serratus Posterior Superior + Serratus Posterior Inferior

Splenius Capitis + Splenius Cervicis

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23
Q

Erector Spinae Muscles

A

“I Love Spaghetti”

ILiocostalis, Longissimus, Spinalis

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24
Q

Breakdown of erector spinae muscles

A

Iliocostalis - Cervicis, Thoracis, Lumborum
Longissimus - Capitis, Cervicis, Thoracis
Spinalis - Cervicis, Thoracis

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25
Q

Origin of Latissimus Dorsi

A
  • Thoracolumbar fascia
  • Spinous process of T7-T12
  • Ribs 9 - 12
  • Inferior angle of Scapula
  • Iliac crest
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26
Q

Insertion of Latissimus Dorsi

A

-Floor of intertubercular groove of humerus

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27
Q

Innervation of Latissimus Dorsi

A

Thoracodorsal nerve (c6,7,8)

“C6, 7, 8 make the lats great”

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28
Q

Action of Latissimus Dorsi

A

Extension, Medial Rotation, Adduction

“getting arrested”

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29
Q

Origin of Serratus Posterior Superior

A
  • Spinous process of C7-T3

- nuchal ligament

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30
Q

Insertion of serratus posterior superior

A

Superior border of ribs 2-4

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31
Q

Innervation of serratus posterior superior

A

Spinal nerve T2-T5 Anterior rami

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32
Q

Action of serratus posterior superior

A

Elevate ribs

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33
Q

Origin of serratus posterior inferior

A

Spinous process of T11-L2

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34
Q

Insertion of serratus posterior inferior

A

Inferior border of ribs 8-12

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35
Q

Innervation of serratus posterior inferior

A

Spinal n. T9-T12 (anterior rami)

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36
Q

Action of serratus posterior inferior

A

depress ribs

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37
Q

Origin of the descending trapezius

A

EOP, nuchal ligament, superior nuchal line

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38
Q

Origin of Splenius capitis

A
  • Spinous process of C3-C7
  • nuchal ligament

*gedo

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39
Q

Insertion of Splenius Capitis

A
  • Mastoid process of temporal bone

- Lateral superior nuchal line

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40
Q

Innervation of Splenius Capitis

A

Spinal Nerves C1-C6 (dorsal Rami)

*biggest bday - 16

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41
Q

Action of Splenius Capitis

A

Bilateral - extends head and cervical spine

Unilateral - ipsilateral lateral flexion and ipsilateral rotation of head

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42
Q

Origin of Splenius cervicis

A

Spinous process of T3-T6

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43
Q

Insertion of Splenius cervicis

A

Transverse process of C1-C2

*G+T serve

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44
Q

Innervation of Splenius Cervicis

A

Spinal Nerves C1-C6 (Dorsal Rami)

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45
Q

Action of Splenius Cervicis

A

Bilateral - extends head and cervical spine

Unilateral = ipsilateral flexion; ipsilateral rotation

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46
Q

Origin of Iliocostalis Cervicis

A

Ribs 3- 7

*Cost - eat ribs

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47
Q

Insertion of Iliocostalis Cervicis

A

Transverse process of C4-C6

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48
Q

Innervation of Illiocostalis Cervicis

A

Spinal nerves C8 - L1 (dorsal rami)

*she ate L1

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49
Q

Action of Illiocostalis cervicis

A

Bilateral: Extends spine
Unilateral: ipsilateral lateral flexion of spine

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50
Q

Origin of Iliocostalis Thoracis

A

Ribs 7-12

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51
Q

Insertion of Iliocostalis Thoracis

52
Q

Action of levator scapulae

A

retract and elevate scapula

(Inclines neck )

*supramedially

53
Q

Innervation of Iliocostalis thoracis

A

Spinal nerves C8-L1 (dorsal rami)

54
Q

Action of iliocostalis thoracis

A

Bilateral: extends spine
Unilateral: ipsilateral lateral flexion of spine

55
Q

Origin of Iliocostalis lumborum

A

Sacrum, iliac crest, thoracolumbar fascia

**SIT - bored when you are sitting down

56
Q

Insertion of iliocostalis lumborum

A
  • Deep thoracolumbar fascia
  • Ribs 6-12
  • Transverse processes of upper lumbar vertebrae
57
Q

Innervation of iliocostalis lumborum

A

Spinal nerves C8-L1 (Dorsal rami)

58
Q

Action of iliocostalis lumborum

A

Bilateral: extends spine
Unilateral: Ipsilateral lateral flexion of spine

59
Q

Origin of Longissimus Capitis

A

Transverse processes of T1-T3
Transverse and articular processes of C4-C7

*Capitol building

60
Q

Insertion of Longissimus capitis

A

-Mastoid process of temporal bone

61
Q

Innervation of longissimus capitis

A

Spinal nerves C1-L5 (dorsal rami)

62
Q

Action of Longissimus capitis

A

Bilateral: extends head
Unilateral: ipsilateral lateral flexion; ipsilateral rotation of head

63
Q

Origin of Longissimus Cervicis

A

Transverse processes of T1-T6

64
Q

Insertion of Longissimus Cervicis

A

Transverse process of C2-C5

65
Q

Innervation of Longissimus cervicis

A

Spinal Nerves C1-L5 (posterior rami)

66
Q

Action of Longissimus cervicis

A

Bilateral: extends spine
Unilateral: ipsilateral lateral flexion

67
Q

Origin of Longissimus thoracis

A

Sacrum, iliac crest, spinous process of lumbar vertebrae, transverse process of thoracic vertebrae

68
Q

Insertion of Longissimus Thoracis

A

Ribs 2-12
Costal processes of thoracic vertebrae
Transverse process of lumbar vertebrae

69
Q

Innervation of Longissimus Thoracis

A

Spinal Nerves C1-L5 (dorsal rami)

70
Q

Action of Longissimus Thoracis

A

Bilateral: extends spine
Unilateral: ipsilateral lateral flexion

71
Q

Origin of Spinalis Cervicis

A

Spinous process of C5-T2

*my dad is 52,

72
Q

Insertion of Spinal Cervicis

A

Spinous process of C2-C5

73
Q

Innervation of Spinalis Cervicis

A

Spinal nerves of posterior rami

74
Q

Action of spinalis cervicis

A

Bilateral: extends cervical and thoracic spine
Unilateral: ipsilateral lateral flexion of cervical and thoracic spine

75
Q

Origin of Spinalis Thoracis

A

Spinous process of T10 - L3

76
Q

Insertion of Spinalis Thoracis

A

Spinous process of T2- T8

77
Q

Innervation of Spinalis thoracis

A

Spinal nerves (posterior rami)

78
Q

Action of spinalis thoracis

A

Bilateral: extends cervical and thoracic spine
Unilateral: ipsilateral lateral flexion of cervical and thoracic spine

79
Q

Origin of semispinalis capitis

A

Transverse and articular process of C4-T7

80
Q

Insertion of semispinalis capitis

A

Occipital bone between superior and inferior nuchal line

81
Q

Innervation semispinalis capitis

A

Posterior rami

82
Q

Action of semispinalis capitis

A

Bilateral: extends thoracic and cervical spine and head
Unilateral: ipsilateral lateral flexion of cervical and thoracic spine; contralateral rotation

83
Q

Origin of semispinalis cervicis

A

Transverse processes of T1-T6

84
Q

Insertion of semispinalis cervicis

A

Spinous process of C2-C5

85
Q

Innervation of semispinalis cervicis

A

Spinal nerves of posterior rami

86
Q

Action of semispinalis cervicis

A

Bilateral: extension of cervical and thoracic spine and head
Unilatera: ipsilateral lateral flexion, contralateral rotation, bends head

87
Q

Semispinalis thoracis

A

Origin -transverse process of T6-T12

Insertion - spinous process of C6-T4

88
Q

Origin and Insertion of Rotatores Brevis

A

Between spinous and transverse process T1-T12 of adjacent vertebrae

89
Q

Origin and insertion of rotatores longus

A

Between spinous and transverse process of adjacent vertebrae T1-T12; skipping one vertebrae

90
Q

Innervation of rotatores brevis and longus

A

Spinal nerves of posterior rami

91
Q

Action of rotatores brevis and longus

A

Bilateral: extension of thoracic spine
Unilateral: Contralateral rotation
Proprioception

92
Q

Origin and insertion of multifidus

A

Between spinous and transverse processes of adjacent vertebrae of C2-sacrum; skipping 2-4 vertebrae

93
Q

Innervation of multifidus

A

Spinal nerves of posterior rami

94
Q

Action of multifidus

A

Bilateral: extension of spine
Unilateral: ipsilateral lateral flexion; contralateral rotation of spine

95
Q

Origin of Obliqus capitis inferior

A

Spinous process of C2

96
Q

Insertion of obliqus capitis inferior

A

Transverse process of C1

97
Q

Innervation of obliqus capitis inferior

A

C1 - suboccipital nerve (posterior rami)

98
Q

Action of obliqus capitis inferior

A

Bilateral: extends head
Unilateral: ipsilateral rotation

99
Q

Origin of obliqus capitis superior

A

Transverse process of C1

100
Q

Insertion of obliqus capitis superior

A

Middle third of inferior nuchal line

*Above rectus capitis major

101
Q

Innervation of obliqus capitis superior

A

C1 - Suboccipital nerve

102
Q

Action of obliqus capitis superior

A

Bilateral: extends head
Unilateral: ipsilateral lateral flexion; contralateral rotation

103
Q

Origin of rectus capitis posterior major

A

Spinous process of C2

104
Q

Insertion of rectus capitis posterior major

A

Middle third of inferior nuchal line

105
Q

Innervation of rectus capitis posterior major

A

C1 - suboccipital nerve

106
Q

Action of rectus capitis posterior major

A

Bilateral: extends head
Unilateral: ipsilateral rotation

107
Q

Origin of rectus capitis posterior minor

A

Posterior tubercle of C1

108
Q

Insertion of rectus capitis posterior minor

A

Inner third of inferior nuchal line

109
Q

Innervation of Rectus capitis posterior minor

A

C1 - suboccipital nerve

110
Q

Action of rectus capitis posterior minor

A

Bilateral: extends head
Unilateral: ipsilateral rotation

111
Q

Origin of sternocleidomastoid

A

Sternal head - manubrium of sternum

Clavicular head - middle 1/3 of clavicle

112
Q

Insertion of SCM

A
  • mastoid process of temporal bone

- superior nuchal line of occipital bone

113
Q

Innervation of sternocleidomastiod

A
  • spinal accessory nerve CN XI

- Cervical plexus C2-C3

114
Q

Action of SCM

A

Bilateral: extends head
Unilateral: ipsilateral lateral flexion; contralateral rotation

115
Q

Origin of anterior scalene

A

Anterior tubercles of transverse processes of C3-C6

116
Q

Insertion of anterior Scalene

A

Scalene tubercules of 1st rib

117
Q

Innervation of anterior scalene

A

branches of brachial and cervical plexuses C3-C8

118
Q

Action of anterior scalene

A

elevates upper ribs (w/ribs fixed)

unilateral: ipsilateral lateral flexion of cervical spine
bilateral: flexes neck

119
Q

Origin of middle scalene

A

C1-C2 (Transverse processes)

C3-C7 Posterior tubercles of transverse processes

120
Q

Insertion of middle scalene

A

1st rib (posterior to groove of subclavian artery)

121
Q

Innervation of middle scalene

A

Branches of brachial and cervical plexuses (C3-C8)

122
Q

Action of middle scalene

A
  • Elevate upper ribs (ribs fixed)
  • Unilateral: ipsilateral lateral flexion of cervical spine
  • Bilateral: flexes neck
123
Q

Origin of posterior scalene

A

Posterior tubercles of transverse processes of C5-C7

124
Q

Insertion of posterior scalene

A

Outer surface of 2nd rib

125
Q

Innervation of posterior scalene

A

Branches of cervical and brachial plexuses C3-C8

126
Q

Action of Posterior Scalene

A

Elevates upper ribs
Unilateral: ipsilateral lateral flexion of cervical spine
Bilateral: flexes neck

Gross Anatomy (11 decks)

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