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Gross Anatomy > test 4 sole of foot > Flashcards

test 4 sole of foot Flashcards

1
Q

first layer muscles

A
  • abdctor hallucis
  • flexor digitorum brevis
  • abductor digiti minimi
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2
Q

Abductor hallucis origin

A

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

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3
Q

Abductor hallucis insertion

A

Medial side of base of proximal phalanx of 1st digit

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4
Q

Abductor hallucisinnervation

A

Medial plantar nerve (S2, S3)

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5
Q

Abductor hallucis action

A

Abducts and flexes 1st digit (great toe, hallux)

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6
Q

Flexor digitorum brevis origin

A

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

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7
Q

Flexor digitorum brevis insertion

A

Both sides of middle phalanges of lateral four digits

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8
Q

Flexor digitorum brevis innervation

A

Medial plantar nerve (S2, S3)

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9
Q

Flexor digitorum brevis action

A

Flexes lateral four digits

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10
Q

Abductor digiti minimi origin

A

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

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11
Q

Abductor digiti minimi insertion

A

Lateral side of base of proximal phalanx of 5th digit

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12
Q

Abductor digiti minimi innervation

A

Lateral plantar nerve (S2, S3)

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13
Q

Abductor digiti minimi action

A

Abducts and flexes 5th digit

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14
Q

second layer muscles

A
  • Quadratus Plantae

- Lumbricals

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15
Q

Quadratus plantae origin

A

Medial surface and lateral margin of plantar surface of calcaneus

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16
Q

Quadratus plantae insertion

A

Posterolateral margin of tendon of flexor digitorum longus

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17
Q

Quadratus plantae innervation

A

Lateral plantar nerve (S2, S3)

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18
Q

Quadratus plantaeaction

A

Assists flexor digitorum longus in flexing lateral four digits

19
Q

Lumbricals origin

A

Tendons of flexor digitorum longus

20
Q

Lumbricalsinsertion

A

Medial aspect of expansion over lateral four digits

21
Q

Lumbricals innervation

A

Medial one: medial plantar nerve (S2, S3)

Lateral three: lateral plantar nerve (S2, S3)

22
Q

Lumbricals action

A

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

23
Q

third layer muscles

A
  • flexor hallucis brevis
  • adductor hallucis
  • flexor digiti minimi brevis
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–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 1st digit; assists in maintaining transverse arch of foot

32
Q

Flexor digiti minimi brevis origin

A

Base of 5th metatarsal

33
Q

Flexor digiti minimi brevis insertion

A

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

36
Q

fourth layer muscles

A
  • plantar interossei (three muscles)

- dorsal interossei (four muscles)

37
Q

Plantar interossei (three muscles) origin

A

Bases and medial sides of metatarsals 3–5

38
Q

Plantar interossei (three muscles) insertion

A

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

39
Q

Plantar interossei (three muscles) innervation

A

Lateral plantar nerve (S2, S3)

40
Q

Plantar interossei (three muscles) action

A

Adduct digits (3–5) and flex metatarsophalangeal joints

41
Q

Dorsal interossei (four muscles) origin

A

Adjacent sides of metatarsals 1–5

42
Q

Dorsal interossei (four muscles) insertion

A

First: medial side of proximal phalanx of 2nd digit

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

43
Q

Dorsal interossei (four muscles) innervation

A

Lateral plantar nerve (S2, S3)

44
Q

Dorsal interossei (four muscles) action

A

Abduct digits (2–4) and flex metatarsophalangeal joints

Gross Anatomy (20 decks)

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