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GA Lab > Lab 9 Musculature > Flashcards

Lab 9 Musculature Flashcards

1
Q

Extensor digitorum brevis origin

A

Anterior and lateral calcaneus

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2
Q

Extensor digitorum brevis insertion

A

Extensor expansions of toes 1-4

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3
Q

Extensor digitorum brevis action

A

Extension of toes 1-4

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4
Q

Extensor digitorum brevis nerve supply

A

Deep peroneal nerve

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5
Q

Extensor digitorum brevis blood supply

A

Dorsalis pedis artery

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6
Q

Abductor hallucis origin

A

Calcaneus

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7
Q

Abductor hallucis insertion

A

Medial surface of base of proximal phalanx of great toe

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8
Q

Abductor hallucis action

A

Flexion and abduction of great toe at MTP joint

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9
Q

Abductor hallucis nerve supply

A

Medial plantar nerve

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10
Q

Abductor hallucis blood supply

A

Medial plantar artery

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11
Q

Flexor digitorum brevis origin

A

Calcaneus

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12
Q

Flexor digitorum brevis insertion

A

Slips onto both sides of bases of middle phalanges of toes 2-5

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13
Q

Flexor digitorum brevis action

A

Flexion of toes 2-5 at PIP joints

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14
Q

Flexor digitorum brevis nerve supply

A

Medial plantar nerve

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15
Q

Flexor digitorum brevis blood supply

A

Medial plantar artery

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16
Q

Abductor digiti minimi origin

A

Calcaneus

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17
Q

Abductor digiti minimi insertion

A

Lateral side of base of proximal phalanx of toe 5

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18
Q

Abductor digiti minimi action

A

Flexion and abduction of toe 5 at MTP joint

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19
Q

Abductor digiti minimi nerve supply

A

Lateral plantar nerve

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20
Q

Abductor digiti minimi blood supply

A

Lateral plantar artery

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21
Q

Quadratus plantae origin

A

Calcaneus

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22
Q

Quadratus plantae insertion

A

Lateral surface of flexor digitorum longus tendon

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23
Q

Quadratus plantae action

A

Flexion of toes 2-5 at DIP joints

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24
Q

Quadratus plantae nerve supply

A

Lateral plantar nerve

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25
Q

Quadratus plantae blood supply

A

Lateral plantar artery

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26
Q

Lumbricals origin

A

Tendons of flexor digitorum longus

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27
Q

Lumbricals insertion

A

Extensor expansion of toes 2-5

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28
Q

Lumbricals action

A

Flexion of toes 2-5 at MTP joints

Extension of toes 2-5 at IP joints

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29
Q

Lumbricals nerve supply

A

Toe 2: medial plantar nerve

Toes 3-5: lateral plantar nerve

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30
Q

Lumbricals blood supply

A

Lateral plantar artery

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31
Q

Flexor hallucis brevis origin

A

Cuboid and lateral cuneiform bones

32
Q

Flexor hallucis brevis insertion

A

Medial and lateral sides of base of proximal phalanx of great toe

33
Q

Flexor hallucis brevis action

A

Flexion of great toe at MTP joint

34
Q

Flexor hallucis brevis nerve supply

A

Medial plantar nerve

35
Q

Flexor hallucis brevis blood supply

A

Medial plantar artery

36
Q

Adductor hallucis origin

A
  1. Oblique head: bases of 2nd through 4th metatarsals

2. Transverse head: deep transverse metatarsal ligament and plantar plates of 3rd through 5th MTP joints

37
Q

Adductor hallucis insertion

A

Lateral side of base of proximal phalanx of great toe

38
Q

Adductor hallucis action

A

Adduction and flexion of great toe at MTP joint

39
Q

Adductor hallucis nerve supply

A

Lateral plantar nerve

40
Q

Adductor hallucis blood supply

A

Lateral plantar artery

41
Q

Flexor digiti minimi origin

A

Base of 5th metatarsal

42
Q

Flexor digiti minimi insertion

A

Lateral surface of base of proximal phalanx of toe 5

43
Q

Flexor digiti minimi action

A

Flexion of toe 5 at MTP joint

44
Q

Flexor digiti minimi nerve supply

A

Lateral plantar nerve

45
Q

Flexor digiti minimi blood supply

A

Lateral plantar artery

46
Q

Dorsal interossei origin

A

Bipennate from adjacent metatarsals

47
Q

Dorsal interossei insertion

A

Base of proximal phalanges and extensor expansions at medial side of toe 2 and lateral sides of toes 2-4

48
Q

Dorsal interossei action

A
  1. Abduction and flexion of toes 2-4 at MTP joints

2. Extension of toes 2-4 at IP joints

49
Q

Dorsal interossei nerve supply

A

Lateral plantar nerve

50
Q

Dorsal interossei blood supply

A

Lateral plantar artery

51
Q

Plantar interossei origin

A

Medial sides of metatarsals 3-5

52
Q

Plantar interossei insertion

A

Medial sides of bases of proximal phalanges and extensor expansions of toes 3-5

53
Q

Plantar interossei action

A
  1. Adduction and flexion of toes 3-5 at MTP joints

2. Extension of toes 3-5 at IP joints

54
Q

Plantar interossei nerve supply

A

Lateral plantar nerve

55
Q

Plantar interossei blood supply

A

Lateral plantar artery

56
Q

Masseter origin

A

Zygomatic arch

57
Q

Masseter insertion

A

Angle and ramus of mandible

58
Q

Masseter action

A

Elevation and protraction of jaw

59
Q

Masseter nerve supply

A

Cranial nerve V

60
Q

Masseter blood supply

A

Branches of external carotid artery

61
Q

Temporalis origin

A

Temporal fossa of frontal, parietal and temporal bones

62
Q

Temporalis insertion

A

Coronoid process of mandible

63
Q

Temporalis action

A

Elevation and retraction of jaw

64
Q

Temporalis nerve supply

A

Cranial nerve V

65
Q

Temporalis blood supply

A

Branches of external carotid artery

66
Q

Sternocleidomastoid origin

A

Sternal head: manubrium of sternum

Clavicular head: medial clavicle

67
Q

Sternocleidomastoid insertion

A

Mastoid process of temporal bone

68
Q

Sternocleidomastoid action

A

Bilaterally: flexion of neck
Unilaterally: ipsilateral lateral flexion of neck and contralateral rotation of neck

69
Q

Sternocleidomastoid nerve supply

A

Cranial nerve XI

70
Q

Sternocleidomastoid blood supply

A

Branches of external carotid artery

71
Q

Platysma origin

A

Fascia over upper, lateral chest

72
Q

Platysma insertion

A

Skin, fascia, and muscles of mandible

73
Q

Platysma action

A

Depression of mandible and lower lip; tension of skin of neck

74
Q

Platysma nerve supply

A

Cranial nerve VII

75
Q

Platysma blood supply

A

Transverse cervical artery and branches of the external carotid artery

GA Lab (5 decks)

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