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MSK II > Leg Actions/Innervations/Origins/Insertions > Flashcards

Leg Actions/Innervations/Origins/Insertions Flashcards

1
Q

what is the action and innervation for gastrocnemius m.

A

plantar flexion, flexes leg at knee

tibial n.

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2
Q

what is the action and innervation for soleus m.

A

plantar flexion

tibial n.

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3
Q

what is the action and innervation for plantaris m.

A

weak plantar flexion, leg flexion

tibial n.

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4
Q

what is the action and innervation for popliteus m.

A

unlocks extended leg by laterally rotating femur on a stationary tibia, weakly flexes leg

tibial n.

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5
Q

what is the action and innervation for flexor hallucis longus m.

A

flexes great toe, plantar flexion at ankle joint

tibial n.

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6
Q

what is the action and innervation for flexor digitorum longus m.

A

flexes lateral 4 digits, plantar flexion of foot at ankle joint

tibial n.

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7
Q

what is the action and innervation for tibialis posterior m.

A

inversion of too, plantar flexion

tibial n.

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8
Q

what is the action and innervation for tibialis anterior m.

A

dorsiflexion and inversion of foot

deep fibular n.

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9
Q

what is the action and innervation for extensor digitorum longus m.

A

extends lateral four digits, dorsiflexion

deep fibular n.

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10
Q

what is the action and innervation for fibularis tertius m.

A

dorsiflexion, eversion of foot

deep fibular n.

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11
Q

what is the action and innervation for extensor hallucis longus m.

A

extension of hallux, dorsiflex ankle

deep fibular n.

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12
Q

what is the action and innervation for fibularis longus m.

A

eversion of foot, plantar flexion

superficial fibular n.

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13
Q

what is the action and innervation for fibularis brevis m.

A

eversion of foot, plantar flexion

superficial fibular n.

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14
Q

what is the origin and insertion for gastrocnemius m.

A

superior to lateral and medial epicondyles of femur

inserts into calcaneus

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15
Q

what is the origin and insertion for soleus m.

A

upper posterior surface of fibula, soleal line of tibia, and upper medial fibula

inserts onto calcaneus

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16
Q

what is the origin and insertion for plantaris m.

A

lower lateral supracondylar line and popliteal surface of femur

inserts onto calcaneus tendon

17
Q

what is the origin and insertion for popliteus m.

A

a tendon just inferior to lateral epicondyle of femur

inserts onto posterior tibia above popliteal line

18
Q

what is the origin and insertion for flexor hallucis longus m.

A

lower 2/3 of posterior fibula and interosseus membrane

inserts onto base of distal phalanx of big toe

19
Q

what is the origin and insertion for flexor digitorum longus m.

A

posterior surface of tibia below popliteal line

inserts onto plantar surface of base of distal phalanges of digits 2-5

20
Q

what is the origin and insertion for tibialis posterior m.

A

interosseus membrane and posterior shaft of tibia and fibula

inserts onto tuberosity of navicular, cuboid, 3 cuneiforms, and bases of metatarsals 2-4

21
Q

what is the origin and insertion for fibularis longus m.

A

lateral shaft and head of fibula

inserts on medial 1st cuneiform and base of 1st metatarsal

22
Q

what is the origin and insertion for fibularis brevis m.

A

lateral shaft of fibula

inserts on the base of the 5th metatarsal

23
Q

what is the origin and insertion for tibialis anterior m.

A

upper 2/3 lateral shaft of tibia, interosseus membrane

inserts on the medial side of medial 1st cuneiform and base of 1st metatarsal

24
Q

what is the origin and insertion for extensor digitorum longus m.

A

anterior surface of fibula and interosseus membrane

inserts onto middle and distal phalanges of digits 2-5 via dorsal expansion

25
Q

what is the origin and insertion for fibularis tertius m.

A

distal fibula and interosseus membrane

inserts onto base of 5th metatarsal

26
Q

what is the origin and insertion for extensor hallucis longus m.

A

middle 1/2 of anterior fibula and interosseus membrane

inserts on the base of distal phalanx of big toe

MSK II (17 decks)

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