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Anatomy Of The Lower Extremity > Muscles Of The Sole Of The Foot > Flashcards

Muscles Of The Sole Of The Foot Flashcards

0
Q

Insertion of the abductor hallucis

A

Medial side of base of proximal phalanx of 1st digit

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1
Q

Origin of the abductor hallucis

A

Medial tubercle of tuberosity of calcaneus
Flexor retinaculum
Plantar aponeurosis

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2
Q

Innervation of abductor hallucis

A

Medial plantar nerve (S2, S3)

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3
Q

Actions of the abductor hallucis

A

Abducts and flexes great toe

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4
Q

Origin of the flexor digitorum brevis

A

Medial tubercle of the tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa

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5
Q

Insertion of the flexor digitorum brevis

A

Both sides of middle phalanges of lateral 4 digits

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6
Q

Innervation of the flexor digitorum brevis

A

Medial plantar nerve (S2, S3)

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7
Q

Actions of the flexor digitorum brevis

A

Flexes lateral 4 digits

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8
Q

Origin of the abductor digiti minimi

A

Medial and lateral tubercles of tuberosity of calcaneus
Plantar aponeurosis
Intermuscular septa

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9
Q

Insertion of the abductor digiti minimi

A

Lateral side of base of proximal phalanx of 5th digit

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10
Q

Innervation of the abductor digiti minimi

A

Lateral plantar nerve (S2, S3)

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11
Q

Actions of the abductor digiti minimi

A

Abducts and flexes 5th digit

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12
Q

Origin of the quadratus plantae

A

Medial surface and lateral margin of plantar surface of calcaneus

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13
Q

Insertion of the quadratus plantae

A

Posterolateral margin of tendon of flexor digitorum longus

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14
Q

Innervation of quadratus plantae

A

Lateral plantar nerve (S2, S3)

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15
Q

Actions of the quadratus plantae

A

Assists flexor digitorum longus in flexing lateral 4 digits

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16
Q

Origin of the lumbricals

A

Tendons of flexor digitorum longus

17
Q

Insertion of the lumbricals

A

Medial aspect of expansion over lateral four digits

18
Q

Innervation of the lumbricals

A

Medial one: medial plantar nerve (S2, S3)

Lateral three: lateral plantar nerve (S2, S3)

19
Q

Action of the lumbricals

A

Flex proximal phalanges

Extend middle and distal phalanges of lateral 4 digits

20
Q

Origin of the flexor hallucis brevis

A

Plantar surfaces of cuboid and lateral cuneiform

21
Q

Insertion of the flexor hallucis brevis

A

Both sides of base of proximal phalanx of 1st digit

22
Q

Innervation of flexor hallucis brevis

A

Medial plantar nerve (S2, S3)

23
Q

Action of the flexor hallucis brevis

A

Flexes proximal phalanx of 1st digit

24
Q

Origin of the adductor hallucis

A

Oblique head: bases of 2-4 metatarsals

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

25
Q

Insertion of the adductor hallucis

A

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

26
Q

Innervation of the adductor hallucis

A

Deep branch of lateral plantar nerve (S2, S3)

27
Q

Actions of the adductor hallucis

A

Adducts 1st digit

Assists in maintaining transverse arch of foot

28
Q

Origin of the flexor digiti minimi brevis

A

Base of 5th metatarsal

29
Q

Insertion of the flexor digiti minimi brevis

A

Base of proximal phalanx of 5th digit

30
Q

Innervation of the flexor digiti minimi brevis

A

Superficial branch of the lateral plantar nerve (S2, S3)

31
Q

Actions of the flexor digiti minimi brevis

A

Flexes proximal phalanx of 5th digit, thereby assisting with its flexion

32
Q

Origin of the plantar interossei (3)

A

Bases and medial sides of metatarsals 3-5

33
Q

Insertion of the plantar interossei (3)

A

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

34
Q

Innervation of the plantar interossei (3)

A

Lateral plantar nerve (S2, S3)

35
Q

Actions of the plantar interossei (3)

A

Adduct digits (3-5) and flex metatarsophalangeal joints

36
Q

Origin of the dorsal interossei (4)

A

Adjacent sides of metatarsals 1-5

37
Q

Insertion of the dorsal interossei (4)

A

First: medial side of proximal phalanx of 2nd digit

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

38
Q

Innervation of the dorsal interossei (4)

A

Lateral plantar nerve (S2, S3)

39
Q

Actions of the dorsal interossei (4)

A

Abducts digits (2-4) and flex metatarsophalangeal joints

Anatomy Of The Lower Extremity (7 decks)

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