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CLINICALS > Neck Muscle Actions + Innervations > Flashcards

Neck Muscle Actions + Innervations Flashcards

1
Q

rectus capitis posterior major innervation

A

dorsal rami of C1 (suboccipital nerve)

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2
Q

rectus capitis posterior major action

A

head extension

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3
Q

rectus capitis posterior minor innervation

A

dorsal rami of C1 (suboccipital nerve)

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4
Q

rectus capitis posterior minor action

A

head extension
ipsilateral rotation

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5
Q

obliquus capitis superior innervation

A

dorsal rami of C1 (suboccipital nerve)

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6
Q

obliquus capitis superior action

A

head extension
ipsilateral sidebend
contralateral rotation

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7
Q

obliquus capitis inferior innervation

A

dorsal rami of C1 (suboccipital nerve)

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8
Q

obliquus capitis inferior action

A

neck extension
ipsilateral SB + rotation

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9
Q

platysma innervation

A

cervical branch of facial nerve (CN VII)

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10
Q

platysma action

A

depression of mandible +
elevates neck skin when the mouth is closed

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11
Q

sternocleidomastoid (SCM) innervation

A

spinal accessory nerve (CN XI)

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12
Q

sternocleidomastoid (SCM) action

A

neck flexion
ipsilateral sidebend
contralateral rotation
thorax + shoulder elevation

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13
Q

stylohyoid innervation

A

facial nerve (CN VII)

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14
Q

stylohyoid action

A

hyoid elevation

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15
Q

digastric posterior belly innervation

A

facial nere (CN VII)

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16
Q

digastric anterior belly innervation

A

mylohyoid branch of trigeminal nerve (CN V3)

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17
Q

digastric (posterior + anterior belly) action

A

hyoid elevation
depression + retraction of mandible

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18
Q

mylohyoid innervation

A

mylohyoid branch of trigeminal nerve (CN V3)

19
Q

mylohyoid action

A

elevation of hyoid
depression + retraction of mandible

20
Q

geniohyoid innervation

A

C1 through hypoglossal nerve (CN XII)

21
Q

geniohyoid action

A

elevation of hyoid
depression + retraction of mandible

22
Q

sternohyoid innervation

A

ansa cervicalis

23
Q

sternohyoid action

A

depression of hyoid and larynx

24
Q

sternothyroid innervation

A

ansa cervicalis

25
Q

sternothyroid action

A

depression of thyroid cartilage and larynx

26
Q

omohyoid innervation

A

ansa cervicalis

27
Q

omohyoid action

A

hyoid depression

28
Q

thyrohyoid innervation

A

C1 through hypoglossal nerve (CN XII)

29
Q

thyrohyoid action

A

hyoid depression
elevation of thyroid cartilage + larynx

30
Q

anterior scalene innervation

A

ventral rami of C4-C6

31
Q

anterior scalene action

A

flexion
ipsilateral sidebend
contralateral rotation
1st rib elevation

32
Q

middle scalene innervation

A

ventral rami of spinal nerve C2-C8

33
Q

middle scalene action

A

neck ipsilateral sidebend
1st rib elevation

34
Q

posterior scalene innervation

A

ventral rami of C6-C8

35
Q

posterior scalene action

A

neck ipsilateral sidebend
2nd rib elevation

36
Q

longus capitis innervation

A

ventral rami of cervical nerves (C1-C3)

37
Q

longus capitis action

A

head flexion

38
Q

longus colli innervation

A

ventral rami of cervical nerves (C2-C6)

39
Q

longus colli action

A

head flexion + SB

40
Q

rectus capitis anterior innervation

A

ventral rami of cranial nerves (C1-C2)

41
Q

rectus capitis anterior action

A

head flexion at OA joint

42
Q

rectus capitis lateralis innervation

A

ventral rami of cranial nerves (C1-C2)

43
Q

rectus capitis lateralis action

A

ipsilateral neck SB

CLINICALS (17 decks)

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