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Anatomy lab > muscles in the neck > Flashcards

muscles in the neck Flashcards

1
Q

origin of sternocleidomastoid

A

medial third of clavicle, manubrium

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2
Q

insertion of sternocleidomastoid

A

mastoid process

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3
Q

function of sternocleidomastoid

A

rotates head to opposite side, flexes neck laterally

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4
Q

innervation of sternocleidomastoid

A

accessory nerve

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5
Q

origin of longus capitis

A

transverse processes of C3-C6

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6
Q

insertion of longus capitis

A

base of occipital bone anterior to foramen magnum

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7
Q

function of longus capitis

A

flexes head, rotates head to same side

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8
Q

innervation of longus capitis

A

ventral rami of cervical nerves

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9
Q

origin of longus colli

A

vertebral bodies, transverse processes of C3-C5

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10
Q

insertion of longus colli

A

front of atlas, transverse processes of C5-C6

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11
Q

function of longus colli

A

flexes neck forward or laterally

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12
Q

innervation of longus colli

A

ventral rami of cervical nerves

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13
Q

origin of scalenus anterior

A

transverse processes of C3-C6

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14
Q

insertion of scalenus anterior

A

scalene tubercle on superior of first rib

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15
Q

function of scalenus anterior

A

flexes neck forward or laterally, raises first rib during forced inspiration

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16
Q

innervation of scalenus anterior

A

ventral rami of cervical nerves

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17
Q

origin of scalenus medius

A

transverse processes of C2-C6

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18
Q

insertion of scalenus medius

A

superior surface of first rib near posterior margin

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19
Q

function of scalenus medius

A

flexes neck laterally, raises first rib during forced inspiration

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20
Q

innervation of scalenus medius

A

ventral rami of cervical nerves

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21
Q

origin of scalenus posterior

A

transverse processes of C4-C6

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22
Q

insertion of scalenus posterior

A

outer surface of second rib

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23
Q

function of scalenus posterior

A

flexes neck laterally, raises second rib during forced inspiration

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24
Q

innervation of scalenus posterior

A

ventral rami of cervical nerves

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25
Q

origin of platysma

A

fascia over the clavicle

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26
Q

insertion of platysma

A

fascia at lower border of mandible

27
Q

function of platysma

A

draws out corners of mouth

28
Q

innervation of platysma

A

facial nerve

29
Q

origin of stylohyoid

A

styloid process of skull

30
Q

insertion of stylohyoid

A

greater horn of hyoid bone

31
Q

function of stylohyoid

A

elevates hyoid during swallowing

32
Q

innervation of stylohyoid

A

posterior auricular nerve

33
Q

origin of anterior belly of digastric

A

hyoid bone by loop of fascia

34
Q

insertion of anterior belly of digastric

A

inferior border of mandible

35
Q

function of anterior belly of digastric

A

elevates hyoid during swallowing and opening of mouth, depresses mandible

36
Q

innervation of anterior belly of digastric

A

mylohyoid nerve

37
Q

origin of posterior belly of digastric

A

skull near mastoid process

38
Q

insertion of posterior belly of digastric

A

hyoid bone by loop of fascia

39
Q

function of posterior belly of digastric

A

elevates hyoid during closing of mouth

40
Q

innervation of posterior belly of digastric

A

posterior auricular nerve

41
Q

origin of mylohyoid

A

line on inside of body of mandible

42
Q

insertion of mylohyoid

A

fibrous band, hyoid bone

43
Q

function of mylohyoid

A

forms semi-rigid floor of mouth, elevates the hyoid

44
Q

innervation of mylohyoid

A

mylohyoid nerve

45
Q

origin of geniohyoid

A

posterior of mandible

46
Q

insertion of geniohyoid

47
Q

function of geniohyoid

A

elevates hyoid during swallowing

48
Q

innervation of geniohyoid

A

first cervical nerve, hypoglossal nerve

49
Q

origin of omohyoid

A

superior border of scapula

50
Q

insertion of omohyoid

A

inferior border of hyoid

51
Q

function of omohyoid

A

depresses hyoid during vocalization and swallowing

52
Q

innervation of omohyoid

A

ventral rami of cervical nerves

53
Q

origin of sternohyoid

A

back of manubrium

54
Q

insertion of sternohyoid

A

lower margin of hyoid

55
Q

function of sternohyoid

A

depresses hyoid

56
Q

innervation of sternohyoid

A

ventral rami of cervical nerves

57
Q

origin of thyrohyoid

A

thyroid cartilage

58
Q

insertion of thyrohyoid

A

lower margin of hyoid

59
Q

function of thyrohyoid

A

depresses hyoid and elevates larynx during swallowing

60
Q

innervation of thyrohyoid

A

ventral rami of cervical nerves

61
Q

origin of sternothyroid

A

back of manubrium

62
Q

insertion of sternothyroid

A

front of thyroid cartilage

63
Q

function of sternothyroid

A

depresses larynx

64
Q

innervation of sternothyroid

A

ventral rami of cervical nerves

Anatomy lab (9 decks)

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