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anatomy year 3 exam > Foot muscles > Flashcards

Foot muscles Flashcards

1
Q

2 groups of foot muscles?

A

intrinsic and extrinsic

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2
Q

action of extrinsic muscles?

A

eversion/ inversion, plantar/ dorsiflexion

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3
Q

action of intrinsic muscles?

A

fine motor movements - e.g. moving individual digits

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4
Q

name the 2 muscles which belong to the dorsal compartment of the foot?

A

extensor digitorum brevis and extensor hallucis brevis

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5
Q

which nerve innervates the extensor digitorum brevis and extensor hallucis brevis?

A

deep fibular nerve

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6
Q

extensor hallucis brevis - action?

A

extends great toe

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7
Q

extensor digitorum brevis - action?

A

extends medial 4 toes

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8
Q

number of intrinsic muscles in sole of the foot?

A

10

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9
Q

how many layers are the intrinsic muscles of the sole of the foot divided into?

A

4

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10
Q

name the 3 muscles in the 1st layer of the sole of the foot?

A

abductor hallucis, flexor digitorum brevis, abductor digiti minimi

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11
Q

name the muscles in the 2nd layer of the sole of the foot?

A

quadratus plantae and 4 lumbricals

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12
Q

name the muscles in the 3rd layer of the sole of the foot?

A

flexor hallucis brevis, adductor hallucis, flexor digiti minimi brevis

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13
Q

name the muscles in the 4th layer of the sole of the foot?

A

plantar interossei, dorsal interossei

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14
Q

abductor hallucis - innervation?

A

medial plantar n

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15
Q

flexor digitorum brevis - innervation?

A

medial plantar n

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16
Q

abductor digiti minimi - innervation?

A

lateral plantar n

17
Q

quadratus plantae - innervation?

A

lateral plantar n

18
Q

4 lumbricals - innervation?

A

medial lumbrical = medial plantar n, other 3 = lateral plantar n

19
Q

flexor hallucis brevis - innervation?

A

medial plantar n

20
Q

adductor hallucis - innervation?

A

lateral plantar n

21
Q

flexor digiti minimi brevis - innervation?

A

lateral plantar n

22
Q

plantar interossei - innervation?

A

lateral plantar n

23
Q

dorsal interossei - innervation?

A

lateral plantar n

anatomy year 3 exam (29 decks)

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