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Anatomy - HSC501 > Muscles of the Foot > Flashcards

Muscles of the Foot Flashcards

1
Q

How many layers of muscle are there in the plantar region?

A

4

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2
Q

Name the muscles in the 1st layer of the plantar region

A

Abductor Hallucis (AH)
Flexor Digitorum Brevis
Abductor Digiti Minimi (AM)

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3
Q

Abductor Hallucis - Origin

A

Medial tubercle of calcaneal tuberosity

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4
Q

Abductor Hallucis - Insertion

A

Base of proximal phalanx of digit one

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5
Q

Abductor Hallucis - Innervation

A

Medial plantar nerve

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6
Q

Abductor Hallucis - Action(s)

A

Abducts and Flexes digit one

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7
Q

Flexor Digitorum Brevis - Origin

A

Medial tubercle of calcaneal tuberosity

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8
Q

Flexor Digitorum Brevis - Insertion

A

Middle phalanges, digits 2-5

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9
Q

Flexor Digitorum Brevis - Innervation

A

Medial plantar nerve

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10
Q

Flexor Digitorum Brevis - Action(s)

A

Flexes digits 2-5

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11
Q

Abductor Digiti Minimi - Origin

A

Medial and lateral tubercles of calcaneal tuberosity

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12
Q

Abductor Digiti Minimi - Insertion

A

Base of proximal phalanx of digit 5

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13
Q

Abductor Digiti Minimi - Innervation

A

Lateral plantar nerve

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14
Q

Abductor Digiti Minimi - Action(s)

A

Abducts and flexes digit 5

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15
Q

Name the muscles of the 2nd layer of the plantar region

A

Quadratus Plantae

Lumbricals

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16
Q

Quadratus Plantae - Origin

A

Medial and lateral calcaneus

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17
Q

Quadratus Plantae - Insertion

A

Tendons of flexor digitorum longus

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18
Q

Quadratus Plantae - Innervation

A

Lateral plantar nerve

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19
Q

Quadratus Plantae - Action(s)

A

Assists flexion of digits 2-5

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20
Q

Lumbricals - Origin

A

Tendons of flexor digitorum longus

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21
Q

Lumbricals - Insertion

A

Expansion of digits 2-5

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22
Q

Lumbricals - Innervation

A

Medial plantar nerve (Lumbrical 1)

Lateral plantar nerve (Lumbricals 3-5)

23
Q

Lumbricals - Action(s)

A

Flexes at metatarsophalangeal joints

Extends at interphalangeal joints

24
Q

Name the muscles of the 4th layer of the plantar region

A

Flexor Hallucis Brevis
Adductor Hallucis
Flexor Digiti Minimi

25
Q

Flexor Hallucis Brevis - Origin

A

Cuboid and lateral cuneiform

26
Q

Flexor Hallucis Brevis - Insertion

A

Base of proximal phalanx of digit 1

27
Q

Flexor Hallucis Brevis - Innervation

A

Medial plantar nerve

28
Q

Flexor Hallucis Brevis - Action(s)

A

Flexes digit 1

29
Q

Adductor Hallucis - Origin

A

Bases of metatarsals 2-4 (Oblique head)

Metatarsophalangeal Joints 3-5 (Transverse head)

30
Q

Adductor Hallucis - Insertion

A

Base of proximal phalanx of digit 1

31
Q

Adductor Hallucis - Innervation

A

Lateral plantar nerve

32
Q

Adductor Hallucis - Action(s)

A

Adducts digit 1

33
Q

Flexor Digiti Minimi - Origin

A

Base of metatarsal 5

34
Q

Flexor Digiti Minimi - Inserstion

A

Base of proximal phalanx of digit 5

35
Q

Flexor Digiti Minimi - Innervation

A

Lateral plantar nerve

36
Q

Flexor Digiti Minimi - Action(s)

A

Flexes digit 5

37
Q

Name the muscles of the 4th layer of the plantar region

A

Plantar Interossei

Dorsal Interossei

38
Q

Plantar Interossei - Origin

A

Base of metatarsals 3-5

39
Q

Plantar Interossei - Insertion

A

Base of proximal phalanges of digit 3-5

40
Q

Plantar Interossei - Innervation

A

Lateral plantar nerve

41
Q

Plantar Interossei - Action(s)

A

Adducts digits 3-5

42
Q

Dorsal Interossei - Origin

A

Metatarsals 1-5

43
Q

Dorsal Interossei - Insertion

A

Proximal Phalanges of 2-4

44
Q

Dorsal Interossei - Innervation

A

Lateral plantar nerve

45
Q

Dorsal Interossei - Action(s)

A

Abducts digit 2-4

46
Q

Name the muscles of the Dorsal Region of the foot.

A

Extensor hallucis brevis

Extensor Digitorum brevis

47
Q

Extensor Hallucis Brevis - Origin

48
Q

Extensor Hallucis Brevis - Insertion

A

Proximal phalanx of digit one

49
Q

Extensor Hallucis Brevis - Innervation

A

Deep Fibular Nerve

50
Q

Extensor Hallucis Brevis - Action(s)

A

Extends digit one

51
Q

Extensor Digitorum Brevis - Origin

52
Q

Extensor Digitorum Brevis - Insertion

A

Extensor tendons of digits 2-4

53
Q

Extensor Digitorum Brevis - Innervation

A

Deep Fibular Nerve

54
Q

Extensor Digitorum Brevis - Action(s)

A

Assists extending digits 2-4

Anatomy - HSC501 (18 decks)

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