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ANAT 392 - Len > Upper limb muscle > Flashcards

Upper limb muscle Flashcards

1
Q

Orbicularis oris

A

O: anteromedial surface of maxilla and mandible
I: skin and fascia of lips
A: compression and profusion of the lips
N: facial n. (CN7)

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2
Q

Orbicularis oculi

A 
O: Orbital part - medial part of orbital margin
Palpebral part - medial palpebral ligament
Lacrimal part - lacrimal bone
I: OP - skin surrounding the orbit
PP - palpebral raphe
LP - upper and lower eyelids 
A: closes eyelids 
N: facial n. (CN7)
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3
Q

Buccinator

A

O: buccinator ridge of mandible; alveolar process of maxilla; pterygomandibular raphe
I: angle of mouth and lateral portion of the upper and lower lips
A: builds substructure of cheek; draws mouth unilaterally
N: facial n. (CN7)

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4
Q

Nasalis

A

O: lateral to the nasal notch of maxilla
I: midline of the aponeurosis at the bridge of the nose
A: widens and flattens nose
N: facial n. (CN7)

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5
Q

Masseter

A

O: zygomatic arch
I: angle and ramus of mandible
A: elevation, adduction and protrusion of the mandible
N: masseteric n.

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6
Q

Medial pterygoid

A

O: lateral pterygoid plate; pyramidal process of palatine bone; tuberosity of maxilla
I: medial surface of angle and ramus of mandible
A: protraction and elevation of mandible; assists lateral pterygoid in lateral movement of the mandible
N: nerve to lateral pterygoid m.

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7
Q

Lateral pterygoid

A

O: Superior head - infratemporal surface of greater wing of sphenoid
Inferior head: lateral surface of lateral pterygoid plate
I: SH - capsule and articular disc of TMJ
IH - neck of mandible
A: protraction of the mandible and aids in mastication
N: nerve to lateral pterygoid m.

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8
Q

Temporalis

A

O: temporal fossa and fascia
I: ramus and coronoid process of mandible
A: VP - elevation of the mandible
HP - retraction of the mandible ; chewing
N: deep temporal n.

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9
Q

Trapezius

A

O: U - external occipital protuberance, nuchal ligament, spinous process of C1-C7 and supraspinous ligament
M - spinous process of C7-T5, supraspinous ligaments, and distal end of nuchal ligament
L - spinous process and supraspinous ligaments of T5-T12
I: U: - posterior border of the lateral 1/3 of clavicle
M - scapular spine and medial margin of the acromion of the scapula
L - medial portion of the scapular spine
A: U - elevation of scapula and assists in upward rotation
M - retraction of scapula
L - depression of scapula and assists in upward rotation
N: Accessory n. (CN XI); CN 3; CN 4

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10
Q

Splenius capitis

A

O: spinous process of C7-T3 vertebrae, nuchal ligament and supraspinous ligament
I: mastoid process of temporal bone
A: extension of head and cervical spine; ipsilateral rotation of the head; lateral flexion of the neck
N: CN2; CN3

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11
Q

Splenius cervicis

A

O: spinous process of T3-T6 and supraspinous ligament
I: Posterior tubercle of the TP of C1-C2
A: extension of the head and cervical spine, ipsilateral rotation of the head; lateral flexion of the neck
N: lower cervical nerves

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12
Q

Levator scapulae

A

O: TP of C1-C4 vertebrae
I: superior angle of the scapula
A: elevation of the scapula; cervical spine lateral flexion; downward rotation
N: anterior rami of the 3rd and 4th cervical nerves, and dorsal scapula nerve (C5)

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13
Q

Scalenus anterior

A

O: anterior tubercles of the TP of C3-C6
I: scalene tubercle of 1st rib
A: elevation of upper ribs; flexion and ipsilateral inclination of the C spine
N: 4, 5, 6 cervical nerves

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14
Q

Scalenus medius

A

O: posterior tubercles of the TP of C2-C7
I: upper surface of 1st rib behind subclavian artery
A: elevation of upper ribs; ipsilateral inclination of the C spine
N: 3-7 cervical nerves

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15
Q

Scalenus posterior

A

O: posterior tubercles of TP of C4-C6
I: lateral surface of 2nd rib
A: elevation of the upper ribs ; flexion and ipsilateral inclination of the C spine
N: 6,7,8 cervical nerves

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16
Q

Digastric

A

O: A - digastric fossa of mandible
P - mastoid notch of temporal bone
I: A - intermediate tendon on the minor cornu of the hyoid bone
P - Intermediate tendon on the minor cornu of the hyoid bone
A: elevates hyoid and depresses mandible
N: Nerve to mylohyoid m.

17
Q

Mylohyoid

A

O: mylohyoid line of the mandible
I: body of the hyoid bone; median raphe
A: elevates and draws the hyoid bone forward; elevates the tongue; depresses the mandible
N: nerve to mylohyoid m.

18
Q

Stylohyoid

A

O: styloid process of temporal bone
I: body of hyoid bone
A: elevation and retraction of the hyoid bone; assists in lowering the mandible
N: facial n. (CN7)

19
Q

Geniohyoid

A

O: inferior mental spine of mandible
I: body of hyoid bone
A: depresses the mandible; elevates the hyoid bone
N: comminucating branch of C1 spinal nerve to hypoglossal n.

20
Q

Sternohyoid

A

O: posterior surfaces of the manubrium and the sternal end of the clavicle
I: lower border of the hyoid bone (medial to the omohyoid insertion)
A: depression and stabilization of the hyoid bone and larynx; aids in phonation and swallowing
N: superior and inferior root of ansa cervicalis

21
Q

Omohyoid

A

O: S - intermediate tendon
I - upper border of the scapula medial to scapular notch
I: S - lower border of the hyoid bone lateral to the sternohyoid
I - intermediate tendon
A: depression and stabilization of the hyoid and larynx for phonation and swallowing
N: S - superior root of ansa cervicalis
I - inferior root of ansa cervicalis

22
Q

Sternothyroid

A

O: posterior surface of the manubrium below the origin of the sternohyoid
I: oblique line of the thyroid cartilage
A: depression and stabilization of the larynx for phonation and swallowing
N: superior and inferior root of the ansa cervicalis

23
Q

Thyrohyoid

A

O: oblique line of the thyroid cartilage
I: lower border of the hyoid bone
A: depression and stabilization of the hyoid bone
N: 1st cervical nerve

24
Q

Longus capitis

A

O: tendinous slips to the anterior tubercles of TP’s of 3-5 cervical vertebrae
I: inferior surface of the basilar part of the occipital bone
A: flexion of head and neck
N: 1, 2, 3 cervical n.

25
Q

Longus cervisis

A

O: Sup. oblique - anterior tubercle of TPs of C3-C5
Vert. par - anterior surface of bodies of vertebrae T1-T3 and C5-C7
Inf. oblique - anterior surface of bodies of T1-T3 vertebrae
I: Sup. Oblique - tubercle of anterior arch of atlas
Vert. part - anterior surface of C2-C4 vertebral bodies
Inf. oblique - ant. tubercles of TPs of C5-C6
A: flexion, rotation and external flexion of the C spine
N: Sup. oblique - 2-4 cervical n.
Vert. part - 2-8 cervical n.
Inf. part - lower cervical n.

26
Q

Sternocleidomastoid

A

O: Sternal head - anterior surface of manubrium
Clavicular head - medial third of clavicle
I: mastoid process of the lateral part of superior nuchal line
A: flexing head and neck, ipsilateral side flexion, contralateral rotation
N: spinal accessory n.

27
Q

Latissimus dorsi

A

O: spinous process of T6-T12; thoracolumbar fascia; iliac crest and lower ribs
I: floor of the intertubercular sulcus of the humerus
A: adduction, extension and medial rotation of the arm at the GH joint
N: thoracodorsal n. (C6,C7, C8)

28
Q

Trapezius

A

O: U - external occipital protuberance, nuchal ligament, SP of C1-C7 and supraspinous ligament
M: SP of C7-T5, supraspinous ligaments, distal end of nuchal ligament
L - SP and supraspinous ligament of T5-T12
I: U - posterior border of the lateral 1/3 of the clavicle
M - scapular spine and medial margin of the acromion of the scapula
L - medial portion of the scapular spine
a: U - elevation of scapula and assists in upward rotation
M - retraction of scapula
L - depression of scapula and assists in upward rotation
N: accessory n. (CN 11), CN 3, CN 4

29
Q

Rhomboid major

A

O: SP of the T2-T5 vertebrae
I: medial border of the scapula from the spine to inferior angle
A: scapular retraction and elevation
N: brand of dorsal scapular nerve (C4, C5)

30
Q

Rhomboid minor

A

O: SP of C7-T1
I: medial border of the scapular at the level of scapular spine
A: scapular retraction and elevation
N: branch of dorsal scapular n. (C4, C5)

31
Q

Serratus posterior superior

A

O: SP of C7-T2, supraspinous ligaments and distal portion of the nuchal ligament
I: inferior border of the external surface of the 2nd - 5th ribs
A: elevates ribs
N: anterior rami of thoracic n.

32
Q

Serratus posteriorinferior

A

O: SP T11-L2 and supraspinous ligaments
I: external surface of 8th to 12th ribs
A: depresses ribs
N: anterior rami of thoracic n. (T9-T12)

33
Q

Splenius capitis

A

O: SP of C7-T3 vertebrae, nuchal ligament and supraspinous ligament
I: mastoid process of temporal bone
A: extension of C spine; ipsilateral rotation of the head; lateral flexion of the neck
N: CN2, CN3

34
Q

Splenius cervicis

A

O: SP of T3-T6 and supraspinous ligament
I: posterior tubercle of the TP of C1-C2
A: extension of the head and C spine; ipsilateral rotation of the head; lateral flexion of the neck
N: CN2, CN3

35
Q

Spinalis cervisis

A

O: SP of lower C spine and upper T spine
I: SP of upper C spine
A: Extension and lateral flexion of vertebral column
N: dorsal rami

36
Q

Spinalis thoracis

A

O: SP of T10-L3
I: SP of T2-T8 vertebrae
A: extension and lateral flexion of the vertebral column
N: dorsal spinal nerves

37
Q

Longissimus capitis

A

O: TP of C4-T4
I: Posterior aspect of mastoid process
A: Extension and lateral flexion of the vertebral column
N: Dorsal rami

38
Q

Longissimus capitis

A

O: TP of C4-T4
I: Posterior aspect of mastoid process
A: Extension and lateral flexion of the vertebral column
N: Dorsal rami

ANAT 392 - Len (25 decks)

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