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KN 251 Unit 3 > Muscle of the Foot > Flashcards

Muscle of the Foot Flashcards

1
Q

The deep fascia of the foot that holds the foot together (considering the weight it bears) and protects the plantar surface from injury and supports the arch

A

Plantar Fascia

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2
Q

The muscles of the foot are also considered extrinsic or intrinsic?

A

Intrinsic muscles

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3
Q

What muscle is on the dorsum of the foot?

A

Extensor Digitorum Brevis

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4
Q

What is the innervation of the extensor digitorum brevis?

A

Deep Fibular Nerve

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5
Q

Origin and insertion of the extensor digitorum brevis

A

Origin: Calcaneus

Insertion: Base of proximal phalanx and toes.

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6
Q

What is the name of the tendon that goes to the big toe?

A

Extensor Hallucis Brevis

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7
Q

Action of the extensor digitorum brevis?

A

Extend toes 1-4

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8
Q

How many muscle layers of the plantar surface of the foot are there?

Why are the individual muscles of little importance?

A

4

Moving toes individually doesn’t do very much

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9
Q

All of the muscles of the plantar surface of the foot are innervated by the ____ nerve which divides into the _____ plantar nerve and the ______ plantar nerve

A

Tibial Nerve
Medial Nerve
Lateral Nerve

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10
Q

Which nerve mostly innervates the superficial and medial muscles of the foot?
Which nerve mostly innervates the lateral and deep muscles of the foot?

A

Medial Plantar Muscle

Lateral Plantar Muscle

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11
Q

The muscle on the surface of the foot that lies along the medial border of the foot and abducts the big toe

A

Abductor Hallucis

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12
Q

Origin of the abductor hallucis

A

Origin: Medial Process of calcaneal tuberosity and flexor retinaculum

Insertion: Proximal phalanx of the big toe

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13
Q

Innervation of the abductor hallucis

A

Medial Plantar Nerve

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14
Q

Action of the abductor hallucis

A

Abducts the great toe, flexes it too

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15
Q

The muscle that flexes the lateral 4 toes, its tendons split and attach to the midldle phalanges, allow the passage of the long flexor tendons to distal phalanges

A

Flexor Digitorum Brevis

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16
Q

Origin and Insertion of the flexor digitorum brevis

A

Origin: Medial process of calcaneusl tuberosity

Insertion: Middle phalanges of 1 2 3 4 sometimes 5

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17
Q

Plantar surface muscle that lies along the lateral border of the foot and fuses with the tendon of the flexor digiti minimi brevis

A

Abductor Digiti Minimi

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18
Q

Origin and insertion of the abductor digiti minimi

A

Origin: Tuberosity of calcaneus

Insertion: Proximal phalynx of the toe

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19
Q

Innervation of the abductor digiti minimi

A

Lateral Plantar Nerve

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20
Q

Action of the abductor digiti minimi

A

Abduction and flexion

21
Q

Muscle in the second layer of the foot, small and inserts into the tendon of flexor digitorum longus. Helps in correcting the pull of FDL

A

Quadratus Plantae

22
Q

Origin and Insertion of the quadratus plantae

A

Origin: Calcaneus

Insertion: Tendon of FDL

23
Q

Innervation of the quadratus plantae

A

Lateral Plantar Nerve

24
Q

Action of the quadratus plantae

A

Helps in correcting movement of FDL

25
Q

Muscles in the second layer that is the 4 small muscles.

A

Lumbricals

26
Q

Origin and insertion of the lumbricals

A

Origin: Tendons of FDL

Insertion: Base of proximal phalanx toes 2-5

27
Q

Action of the lumbricals

A

Flex the toes 2-5

28
Q

Innervation of the lumbricals (1st)

2nd, 3rd and 4th

A

Medial Plantar Nerve

Lateral plantar nerve

29
Q

Muscle of the third later that has 2 heads, a lateral and a medial head, that are separated by the flexor hallucis longus

A

Flexor Hallucis Brevis

30
Q

Origin and insertion of the flexor hallucis brevis, joins with abuctor and adductor hallucis

A

Origin: Cuboid and lateral cuneiform

Insertion: Proximal phalynx of great toe

31
Q

Innervation of the flexor hallucis brevis

A

Medial Plantar Nerve

32
Q

Action of the flexor hallucis brevis

A

Flexion of proximal phalynx

33
Q

Muscle in 3rd layer that has and oblique and transverse heads which combine and insert laterally onto proximal phalanx of big toe. Forms a 7 on the foot

A

Adductor Hallucis

34
Q

Origin and insertion of the adductor hallucis (tranverse and oblique)

A

Origin (oblique): base of metatarsal 2-4 and tendon of fibularis longus
tranverse: metatarsal tranverse ligament toes of toes 345

Insertion: Proximal phalanx

35
Q

Innervation of the adductor hallucis

A

Lateral plantar nerve

36
Q

Action of the adductor hallucis

A

Adduction and flexion of the big toe

37
Q

The muscle in the 3rd layer which is just medial to the abductor digiti minimi brevis

A

Flexor Digiti Minimi brevis

38
Q

Origin and insertion of flexor digiti minimi brevis

A

Origin: 5th metatarsal, fibularis longus tendon

Insertion: proximal phalanx of little toe

39
Q

Innervation of the flexor digiti minimi brevis

A

Lateral plantar nerve

40
Q

Action of the flexor digiti minimi brevis

A

Flex the little toe

41
Q

This layer of foot muscle contains the interossei

A

Deepest layer, 4th layer.

42
Q

The deep muscle of the foot that adduct the 3rd 4th and 5th toes toward the second toes

A

Plantar interossei (PAD)

43
Q

Which digit is the reference point in the foot?

A

2nd Digit

44
Q

Origin and insertion of the plantar interossei

A

Origin: Metatarsal 3 4 5

Insertion: Proximal phalanges 3 4 5

45
Q

Innervation of the plantar interossei

A

Lateral Plantar Nerve

46
Q

Action of the plantar interossei (PAD)

A

Adducting toes 3-5 towards 2nd toes

47
Q

The deep muscles of the foot that abduct the 2nd 3rd and 4th toes digits (DAB)

A

Dorsal interossei

48
Q

Origin and insertion of the dorsal interossei

A

Origin: On adjacent sides of metatarsals 1-5 (bipennate)

Insertion: Proximal phalanx of 2,3,4

49
Q

Innervation of the dorsal interossei

A

Lateral Plantar Nerve

KN 251 Unit 3 (11 decks)

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