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Gross > Foot Muscles > Flashcards

Foot Muscles Flashcards

0
Q

Second layer of sole of foot

A

Quadratus plantae and lumbricals

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1
Q

First layer of muscles of sole of foot

A

Abductor hallucis, flexor digitorum brevis, abductor digiti minimi

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2
Q

Third layer of sole of foot

A

Flexor hallucis brevis, adductor hallucis, flexor digiti minimi brevis

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3
Q

Fourth layer of sole of foot

A

Plantar interossei (3) and dorsal interossei (4)

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4
Q

Abductor hallucis origin

A

Medial tubercle of tuberosity of calcaneus, flexor retinaculum and plantar aponeurosis

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5
Q

Abductor hallucis insertion

A

Medial side of base of proximal phalanx of 1st digit

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6
Q

Abductor hiatus innervation

A

Medial plantar nerve

S2, s3

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7
Q

Abductor hiatus action

A

Abducts and flexes first digit

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8
Q

Flexor digitorum brevis origin

A

Medial tubercle of tuberosity of calcaneus, plantar aponeurosis, and intermuscular septa

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9
Q

Flexor digitorum brevis insertion

A

Both sides of middle phalanges of lateral four digits

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10
Q

Flexor digitorum brevis innervation

A

Medial plantar nerve

S2, s3

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11
Q

Flexor digitorum brevis action

A

Flexes lateral four digits

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12
Q

Abductor digiti minimi origin

A

Medial and lateral tubercles of tuberosity of calcaneus, plantar aponeurosis and intermuscular septa

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13
Q

Abductor digiti minimi insertion

A

Lateral side of base of proximal phalanx of fifth digit

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14
Q

Abductor digiti minimi innervation

A

Lateral plantar nerve

S2, s3

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15
Q

Abductor digiti minimi action

A

Abducts and flexes fifth digit

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16
Q

Quadratus plantae origin

A

Medial surface and lateral margin of plantar surface of calcaneus

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17
Q

Quadratus plantae insertion

A

Posterolateral margin of tendon of flexor digitorum brevis

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18
Q

Quadratus plantae innervation

A

Lateral plantar nerve

S2, s3

19
Q

Quadratus plantae action

A

Assists flexor digitorum longus in flexing lateral four digits

20
Q

Lumbricals origin

A

Tendons of flexor digitorum longus

21
Q

Lumbricals insertion

A

Medial aspect of expansion over lateral four digits

22
Q

Lumbricals innervation

A

Medial one: medial plantar nerve, s2, s3

Lateral three: lateral plantar nerve, s2, s3

23
Q

Lumbricals action

A

Flex proximal phalanges, extend middle and distal phalanges of lateral four digits

24
Q

Flexor hallucis brevis origin

A

Plantar surfaces of cuboid and lateral cuneiform

25
Q

Flexor hallucis brevis insertion

A

Both sides of base of proximal phalanx of 1st digit

26
Q

Flexor hallucis brevis innervation

A

Medial plantar nerve s2, s3

27
Q

Flexor hallucis brevis action

A

Flexes proximal phalanx of 1st digit

28
Q

Adductor hallucis origin

A

Oblique head: bases of metatarsals 2-4

Transverse head: plantar ligaments of 3rd to 5th metatarsophalangeal joints

29
Q

Adductor hallucis insertion

A

Tendons of both heads attach to lateral side of base of proximal phalanx of 1st digit

30
Q

Adductor hallucis innervation

A

Deep branch of lateral plantar nerve

S2, s3

31
Q

Adductor hallucis action

A

Adducts first digit

Assists in maintaining transverse arch of foot

32
Q

Flexor digiti minimi brevis origin

A

Base of fifth metatarsal

33
Q

Flexor digiti minimi brevis insertion

A

Base of proximal phalanx of fifth digit

34
Q

Flexor digiti minimi brevis innervation

A

Superficial branch of lateral plantar nerve

S2, s3

35
Q

Flexor digiti minimi brevis action

A

Flexes proximal phalanx of fifth digit

36
Q

Flexor digiti minimi brevis innervation

A

Superficial branch of lateral plantar nerve s2, s3

37
Q

Flexor digiti minimi action

A

Flexes proximal phalanx of fifth digit, thereby assisting with its flexion

38
Q

Plantar interossei origin

A

Bases and medial sides of metatarsals 3-5

39
Q

Plantar interossei insertion

A

Medial sides of bases of proximal phalanges of 3rd-5th digits

40
Q

Plantar interossei innervation

A

Lateral plantar nerve

S2, s3

41
Q

Plantar interossei action

A

Adduct digits 3-5 and flex metatarsophalangeal joints

42
Q

Dorsal interossei origin

A

Adjacent sides of metatarsals 1-5

43
Q

Dorsal interossei insertion

A

First: medial side of proximal phalanx of 2nd digit

Second to fourth: lateral sides of 2nd to 4th digits

44
Q

Dorsal interossei innervation

A

Lateral plantar nerve

S2, s3

45
Q

Dorsal interossei action

A

Abduct digits 2-4 and flex metatarsophalangeal joints

Gross (31 decks)

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