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Abs Muscles > Foot > Flashcards

Foot Flashcards

1
Q

name the 3 muscles in the first layer of the sole of the foot

A

abductor hallucis
flexor digitorum brevis
abductor digiti minimi

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2
Q

What is the origin of abductor hallucis

A

calcaneal tuberosity, flexor retinaculum, plantar aponeurosis

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3
Q

what is the insertion of abductor hallucis

A

base of proximal phalanx of big toe

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4
Q

what is the innervation of abductor hallucis

A

medial plantar nerve

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5
Q

what is the function of abductor hallucis

A

abducts and flexes the big toe

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6
Q

what is the origin of flexor digitorum brevis

A

calcaneal tuberosity, plantar aponeurosis

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7
Q

what is the insertion of flexor digitorum brevis

A

middle phalanges of 4 lateral toes

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8
Q

what is the innervation of flexor digitorum brevis

A

medial plantar nerve

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9
Q

what is the function of flexor digitorum brevis

A

flexes 4 lateral toes

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10
Q

what is the origin of abductor digiti minimi

A

calcaneal tuberosity, plantar aponeurosis

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11
Q

what is the insertion of abductor digiti minimi

A

base of phalanx of 5th toe

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12
Q

what is the innervation of abductor digiti minimi

A

lateral plantar nerve

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13
Q

what is the function of abductor digiti minimi

A

abducts and flexes little toe

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14
Q

name the 4 muscles in the 2nd layer of the sole of the foot

A

flexor hallucis brevis
quadratus plantae
flexor digiti minimi brevis
lumbricals

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15
Q

what is the origin of flexor hallucis brevis

A

cuboid and lateral cuneiforms

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16
Q

what is the insertion of flexor hallucis brevis

A

medial/lateral sides of base of proximal phalanx of big toe

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17
Q

what is the innervation of flexor hallucis brevis

A

medial plantar nerve

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18
Q

what is the function of flexor hallucis brevis

A

flexes big toe

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19
Q

what is the origin of quadratus plantae

A

calcaneus

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20
Q

what is the insertion of quadratus plantae

A

tendon of FDL

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21
Q

what is the innervation of quadratus plantae

A

lateral plantar nerve

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22
Q

what is the function of quadratus plantae

A

flexes 4 lateral toes

23
Q

what is the origin of flexor digiti minimi brevis

A

base of 5th metatarsal

24
Q

what is the insertion of flexor digiti minimi brevis

A

base of proximal phalanx of little toe

25
Q

what is the innervation of flexor digiti minimi brevis

A

lateral plantar nerve

26
Q

what is the function of flexor digiti minimi brevis

A

flexes little toe

27
Q

what are the origins of the lumbricals

A

tendons of FDL

28
Q

what are the insertions of the lumbricals

A

proximal phalanges

29
Q

what are the innervations of the lumbricals

A

1st lumbrical - medial plantar nerve

2nd/3rd/4th - lateral plantar nerve

30
Q

what are the functions of the lumbricals

A

flex proximal phalanges and extend distal phalanges

31
Q

which muscle makes up the 3rd layer of the sole of the foot

A

adductor hallucis

32
Q

what is the origin of adductor hallucis

A

bases of 2nd-4th metatarsals

33
Q

what is the insertion of adductor hallucis

A

base of proximal phalanx of big toe

34
Q

what is the innervation of adductor hallucis

A

lateral plantar nerve

35
Q

what is the function of adductor hallucis

A

adducts big toe, flexes proximal phalanx

36
Q

What are the muscles of the foot

A

dorsal and plantar interossei

37
Q

What are the origins of the dorsal interossei

A

metatarsals

38
Q

what are insertions of the dorsal interossei

A

1st - medial proximal phalanx 2nd toe

2nd-4th - lateral sides of toes 2-4

39
Q

what is the innervation of the dorsal interossei

A

lateral plantar nerve

40
Q

what are the functions of the dorsal interossei

A

abduct toes, flex proximal phalanges, extend distal phalanges

41
Q

what are the origins of the plantar interossei

A

bases 3rd-5th metatarsals

42
Q

what are the insertions of the plantar interossei

A

bases of 3rd-5th proximal phalanges

43
Q

what is the innervation of the plantar interossei

A

lateral plantar nerve

44
Q

what are the functions of the plantar interossei

A

adducts toes, flex proximal phalanges, extend distal phalanges

45
Q

Two dorsal muscles of the foot

A

extensor digitorum brevis and extensor hallucis brevis

46
Q

origin of extensor digitorum brevis

A

calcaneus

47
Q

insertion of extensor digitorum brevis

A

bases of middle phalanges 2-4

48
Q

innervation of extensor digitorum brevis

A

deep fibular nerve

49
Q

function of extensor digitorum brevis

A

extends MTPs 2-4

50
Q

origin of extensor hallucis brevis

A

calcaneus

51
Q

insertion of extensor hallucis brevis

A

base of 1st proximal phalanx

52
Q

innervation of extensor hallucis brevis

A

deep fibular nerve

53
Q

function of extensor hallucis brevis

A

extends big toe MTP

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