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Anatomy & Physiology I > The Muscular System - Head, Neck, Trunk > Flashcards

The Muscular System - Head, Neck, Trunk Flashcards

1
Q

orbicularis oculi action

A

eye closure

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2
Q

orbicularis oculi innervation

A

facial nerve (CNVII)

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3
Q

orbicularis oris action

A

mouth closure, closes lips, protrudes lip forward, presses lips against teeth

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4
Q

orbicularis oris innervation

A

facial nerve (CNVII)

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5
Q

zygomaticus major/minor action

A

pull corners of lips upward

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6
Q

Zygomaticus major/minor innervation

A

facial nerve (CNVII)

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7
Q

risorius action

A

pulls corners of the mouth posteriorly (grin or grimace)

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8
Q

risorius innervation

A

facial nerve (CNVII)

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9
Q

frontalis (occipitofrontalis) action

A

raises eyebrows

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10
Q

Frontalis (occipitofrontalis) innervation

A

facial nerve (CNVII)

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11
Q

buccinator action

A

compress cheeks

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12
Q

buccinator innervation

A

facial nerve (CNVII)

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13
Q

masseter action

A

jaw closure

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14
Q

masseter innervation

A

trigeminal nerve (CN V, mandibular branch)

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15
Q

temporalis action

A

elevates mandible, closes jaw

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16
Q

temporalis innervation

A

trigeminal nerve (CN V, mandibular branch)

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17
Q

Semispinalis Capitis origin

A

articular processes of inferior cervical & transverse process of superior thoracic vertebrae

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18
Q

Semispinalis Capitis insertion

A

occipital bone

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19
Q

Semispinalis Capitis action (uni and bi)

A

bilateral - extends head, unilateral - laterally flexes neck to same side

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20
Q

Semispinalis Capitis innervation

A

spinal nerves

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21
Q

Sternocleidomastoid origin

A

sternal end of clavicle and manubrium

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22
Q

Sternocleidomastoid insertion

A

mastoid region of skull

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23
Q

Sternocleidomastoid action (uni and bi)

A

bilateral - neck flexion, unilateral - turns face to opposite side

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24
Q

Sternocleidomastoid innervation

A

accessory nerve (CN XI)

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25
Q

Splenius Capitis origin

A

spinous process/ligaments of inferior cervical vertebrae

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26
Q

Splenius Capitis insertion

A

mastoid process, occipital bone of skull

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27
Q

Splenius Capitis action (uni and bi)

A

bilateral - extends head, unilateral - laterally flexes neck to same side

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28
Q

Splenius Capitis innervation

A

cervical spinal nerves

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29
Q

Longissimus Cervicis origin

A

transverse processes of superior thoracic vertebrae

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30
Q

Longissimus Cervicis insertion

A

transverse process of middle and superior cervical vertebrae

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31
Q

Longissimus Cervicis action (uni and bi)

A

bilateral - extends head, unilateral - laterally flexes neck to same side

32
Q

Longissimus Cervicis innervation

A

cervical and thoracic spinal nerves

33
Q

Longissimus Thoracis origin

A

transverse process of all thoracic and lumbar vertebrae

34
Q

Longissimus Thoracis insertion

A

transverse processes of all thoracic vertebrae

35
Q

Longissimus Thoracis action (uni and bi)

A

bilateral - extension of spine, unilateral - lateral flexion of spine

36
Q

Longissimus Thoracis innervation

A

thoracic and lumbar spinal nerves

37
Q

Thyrohyoid origin

A

thyroid cartilage of larynx

38
Q

thyrohyoid insertion

A

hyoid bone

39
Q

Thyrohyoid action

A

elevates thyroid, depresses hyoid bone

40
Q

Thyrohyoid innervation

A

hypoglossal nerve

41
Q

Scalenes (anterior, middle, posterior) origin

A

transverse processes of C2- C7

42
Q

Scalenes (anterior, middle, posterior) insertion

A

first and second ribs

43
Q

Scalenes (anterior, middle, posterior) action

A

elevates ribs 1 & 2

44
Q

Scalenes (anterior, middle, posterior) innervation

A

cervical spinal nerves

45
Q

what are the 3 muscles of the erector spinae?

A

spinalis, longissimus, iliocostalis

46
Q

what are the 3 portions of the spinalis?

A

spinalis thoracis, spinalis cervicis, and spinalis capitis

47
Q

what are the 3 portions of the longissimus?

A

longissimus thoracis, longissimus cervicis, and longissimus capitis

48
Q

what are the 3 portions of the iliocostalis?

A

iliocostalis lumborum, iliocostalis thoracis, and iliocostalis cervicis

49
Q

Rectus abdominis origin

A

pubic crest, pubic symphysis

50
Q

Rectus abdominis insertion

A

pubis, cartilages of ribs 5-7, xiphoid process

51
Q

Rectus abdominis action

A

flexion of spine, compression of abdominal viscera

52
Q

Rectus abdominis innervation

A

spinal nerves (T7-T12)

53
Q

External Oblique origin

A

sternum, ribs (5-12)

54
Q

External Oblique insertion

A

linea alba, iliac crest

55
Q

External Oblique action (uni and bi)

A

bilateral - flexion of the spine, compress the abdomen, unilateral - flexes trunk to same side, rotates to opposite side

56
Q

External Oblique innervation

A

lower intercostal, ilioinguinal nerves

57
Q

Internal Oblique origin

A

iliac crest, lumbodorsal fascia

58
Q

Internal Oblique insertion

A

inferior ribs, linea alba

59
Q

Internal Oblique action

A

compresses abdomen, depresses ribs, flexes spine

60
Q

Internal Oblique innervation

A

lower intercostal, ilioinguinal nerves

61
Q

Transverse Abdonimis origin

A

lateral inguinal ligament, inner iliac crest

62
Q

Transverse Abdonimis insertion

A

linea alba, pubis

63
Q

Transverse Abdonimis action

A

compression of abdomen

64
Q

Transverse Abdonimis innervation

A

first lumbar nerve (T7- L1), iliohypogastric (T12-L1), ilioinguinal (T12-L1)

65
Q

diaphragm origin

A

cartilage of ribs 7-12, xiphoid process, lumbar vertebrae

66
Q

diaphragm insertion

A

anterior longitudinal ligament (vertebral column)

67
Q

diaphragm action

A

expands thoracic cavity, compresses abdominal cavity

68
Q

diaphragm innervation

A

phrenic nerve (C3-C5)

69
Q

Internal Intercostals origin

A

superior border of ribs 2-12

70
Q

Internal Intercostals insertion

A

inferior of ribs above (1-11)

71
Q

Internal Intercostals action

A

depresses ribs (forced expiration)

72
Q

Internal Intercostals innervation

A

intercostal nerves

73
Q

External Intercostals origin

A

lower border of ribs 1-11

74
Q

External Intercostals insertion

A

upper border of ribs below (2-12)

75
Q

External Intercostals action

A

elevates ribs (normal inspiration)

76
Q

External Intercostals innervation

A

intercostal nerves

Anatomy & Physiology I (10 decks)

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