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GA 2 > Foot & Ankle Muscles > Flashcards

Foot & Ankle Muscles Flashcards

1
Q

1st Layer Muscles

A
  • Abductor hallucis m.
  • Flexor digitorum brevis m.
  • Abductor digiti minimi m.
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2
Q

2nd Layer Muscles

A
  • Quadrate plantae m.

- Lumbricals

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3
Q

3rd Layer Muscles

A
  • Flexor hallucis brevis m.
  • Adductor hallucis m.
  • Flexor digiti minimi m.
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4
Q

4th Layer Muscles

A
  • Plantar interossei m. (3)

- Dorsal interossei m. (4)

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5
Q

Dorsum of Foot Muscles

A
  • Extensor digitorum brevis m.

- Extensor hallucis brevis m.

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6
Q

Abductor hallucis m. - origin

A
  • Medial tubercle of tuberosity of calcaneous
  • flexor retinaculum
  • plantar aponeurosis
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7
Q

Abductor hallucis m. - insertion

A

Medial side of base of proximal phalanx of 1st digit

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8
Q

Abductor hallucis m., Flexor digitorum brevis m. - nerve

A

Medial plantar n. (S2,3)

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9
Q

Abductor hallucis m. - action

A

Abducts and flexes great toe

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10
Q

Abductor hallucis m. - blood supply

A

medial plantar a., plantar MT a., proper plantar digital a.

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11
Q

Flexor digitorum brevis m. - origin

A
  • Medial tubercle of tuberosity of calcaneous
  • Plantar aponeurosis
  • intermuscular septa
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12
Q

Flexor digitorum brevis m. - insertion

A

Both sides of middle phalanges of lateral 4 digits

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13
Q

Flexor digitorum brevis m. - action

A

Flexes lateral 4 digits

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14
Q

Flexor digitorum brevis m. - blood supply

A

lateral plantar a., medial plantar a., plantar MT a., proper plantar digital a.

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15
Q

Abductor digiti minimi m. - origin

A
  • medial and lateral tubercles of tuberosity of calcaneous
  • plantar aponeurosis
  • intermuscular septa
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16
Q

Abductor digiti minimi m. - insertion

A

Lateral side of base of proximal phalanx of 5th digit

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17
Q

Abductor digiti minimi m. - nerve

A

Lateral plantar n. (S2, 3)

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18
Q

Abductor digiti minimi m. - action

A

Abducts and flexes little toe

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19
Q

Abductor digiti minimi m. - blood supply

A

lateral plantar a., medial plantar a., plantar MT a., proper plantar digital a.

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20
Q

Quadrate plantae m. - origin

A

medial surface and lateral margin of plantar surface of calcaneous

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21
Q

Quadrate plantae m. - insertion

A

posterolateral margin of tendon of flexor digitorum longus m.

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22
Q

Quadrate plantae m. - nerve

A

Lateral plantar n. (S2, 3)

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23
Q

Quadrate plantae m. - action

A

Assist Flexor digitorum longus in flexing lateral 4 digits

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24
Q

Quadrate plantae m. - blood supply

A

medial plantar a., lateral plantar a., deep plantar arch

25
Q

Lumbricals - origin

A

Tendons of flexor digitorum longus m.

26
Q

Lumbricals - insertion

A

medial aspect of expansion over lateral 4 digits

27
Q

Lumbricals - nerve

A
  • Medial 1: medial plantar n. (S2,3)

- Lateral 3: lateral plantar n. (S2,3)

28
Q

Lumbricals - action

A
  • Flex proximal phalanges

- extend middle and distal phalanges of lateral 4 digits

29
Q

Lumbricals - blood supply

A

lateral plantar a., plantar MT a., dorsal digital a. of foot

30
Q

Flexor hallucis brevis m. - origin

A

Plantar surface of cuboid and lateral cuneiforms

31
Q

Flexor hallucis brevis m. - insertion

A

Both sides of base of proximal phalanx of 1st digit

32
Q

Flexor hallucis brevis m. - nerve

A

medial plantar n. (S2,3)

33
Q

Flexor hallucis brevis m. - action

A

flexes proximal phalanx of great toe

34
Q

Flexor hallucis brevis m. - blood supply

A

medial plantar a., plantar MT a.

35
Q

Adductor hallucis m. - origin

A
  • Oblique head: bases of MTs 2-4

- Transverse head: plantar ligaments of MTP joints

36
Q

Adductor hallucis m. - insertion

A

Lateral side of base of proximal phalanx of 1st digit

37
Q

Adductor hallucis m. - nerve

A

Deep branch of lateral plantar n. (S2, 3)

38
Q

Adductor hallucis m. - action

A
  • Adduct 1st digit

- Assist in transverse arch of foot by MTs medially

39
Q

Adductor hallucis m. - blood supply

A

medial plantar a., deep plantar arch, plantar MT a.

40
Q

Flexor digiti minimi brevis m. - origin

A

Base of 5th MT

41
Q

Flexor digiti minimi brevis m. - insertion

A

Base of proximal phalanx of 5th digit

42
Q

Flexor digiti minimi brevis m. - nerve

A

Superficial branch of lateral plantar n. (S2,3)

43
Q

Flexor digiti minimi brevis m. - action

A

Flexes proximal phalanx of 5th digit

44
Q

Flexor digiti minimi brevis m. - blood supply

A

lateral plantar a., superficial branch of lateral plantar a., lateral tarsal a.

45
Q

Plantar interossei m. - insertion

A

medial sides of bases of phalanges of digits 3-5

46
Q

Plantar interossei m., dorsal interossei m. - nerve

A

Lateral plantar n. (S2,3)

47
Q

Plantar interossei m. - action

A
  • Adduct digits 3-5

- Flex MTP joints

48
Q

Dorsal interossei m. - origin

A

adjacent sides of shafts of MTs 1-5

49
Q

Plantar interossei m. - blood supply

A

lateral plantar a., deep plantar., plantar MT a., proper plantar digital a.

50
Q

Dorsal interossei m. - action

A
  • Abduct digits 2-4

- Flex MTP joints

51
Q

Dorsal interossei m. - action

A
  • Abduct digits 2-4

- Flex MTP joints

52
Q

Extensor digitorum brevis m. -

A
  • Calcaneous (floor of tarsal sinus)
  • Interosseous talcalcaneal ligament
  • Stem of inferior extensor retinaculum
53
Q

Extensor digitorum brevis m. - insertion

A

Long extensor tendons of 4 medial digits (toes 2-4)

54
Q

Extensor digitorum brevis m., extensor hallucis brevis m. - nerve

A

Deep fibular n. (L1 or S1 or both)

55
Q

Extensor digitorum brevis m. - action

A

Aids extensor digitorum longus in extending medial toes at MTP and ITP joints

56
Q

Extensor hallucis brevis m. - origin

A

in common with extensor digitorum brevis m.

57
Q

Extensor digitorum brevis m. - blood supply

A

perforating branch of fibular a., lateral tarsal a., dorsalis pedis a., arcuate a. of foot

58
Q

Extensor hallucis brevis m. - action

A

aids extensor hallucis longus in extending big toe at MTP joint

59
Q

Extensor hallucis brevis m. - blood supply

A

perforating branch of fibular a., lateral tarsal a., dorsalis pedis a., arcuate a. or foot

GA 2 (14 decks)

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