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LEA ( Ashley) > Innervations of the Foot > Flashcards

Innervations of the Foot Flashcards

1
Q

sciatic nerve divides into?

A

common fibular nerve

tibial nerve

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2
Q

common fibular nerve divides into?

A

deep fibular n.

superficial fibular n.

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3
Q

sural nerve is formed by?

A

communicating ramus from lateral sural cutaneous nerve + medial sural cutaneous nerve (which is a branch of the tibial n.)

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4
Q

deep fibular n. is a branch of?

A

common fibular n

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5
Q

deep fibular n. innervates what compartment?

A

anterior leg

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6
Q

deep fibular n. courses

A

deep to the deep fascia with the anterior tibial vessels

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7
Q

on the dorsum of the foot, the deep fibular divides into

A

medial and lateral terminal branch

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8
Q

medial terminal branch follows the course of

A

the dorsal pedis a.

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9
Q

medial terminal branch becomes superficial

A

as it pierces the deep fascia at the proximal aspect of the 1st interspace

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10
Q

medial terminal branch divides into

A

2 dorsal proper digital n. for the adjacent sides of the hallux and 2nd toe

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11
Q

lateral terminal branch follows the course of

A

the lateral tarsal a

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12
Q

lateral terminal branch innervates what muscles

A

EHB

EDB

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13
Q

superficial fibular n is a branch of

A

common fibular n

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14
Q

superficial fibular n. innervates what compartment

A

lateral leg compartment

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15
Q

superficial fibular n. pierces the deep fascia in the —of the leg

A

lower 1/3

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16
Q

superficial fibular n. innervates —after it pierces the deep fascia

A

skin on the lower anterolateral aspect of the leg

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17
Q

—to the malleoli the superficial fibular n. divides into —- and —-

A

Proximal
medial dorsal cutaneous n.
intermediate dorsal cutaneous n

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18
Q

medial dorsal cutaneous n. is a branch of

A

superficial fibular n. in the lower leg

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19
Q

on the dorsum of the foot, the medial dorsal cutaneous n. divides into

A

dorsal proper digital br.

dorsal common digital br.

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20
Q

the dorsal proper digital br of the medial dorsal cutaneous n. innervates

A

the skin on the dorsomedial aspect of the hallux

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21
Q

the dorsal proper digital branch of the medial dorsal cutaneous n. communicates with

A

the medial terminal branch of the deep fibular n. and the saphenous n

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22
Q

the dorsal common digital branch of the medial dorsal cutaneous n. divides into

A

2 dorsal proper digital branches for the skin on the adjacent sides of the 2nd and 3rd toes

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23
Q

medial dorsal cutaneous nerve innervates

A

the skin on the dorsomedial side of the foot

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24
Q

intermediate dorsal cutaneous nerve also called?

A

Lemont’s nerve

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25
Q

intermediate dorsal cutaneous nerve branches from

A

the superficial fibular nerve in the lower leg region

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26
Q

intermediate dorsal cutaneous nerve divides into — and — on the dorsum of the foot

A

medial dorsal common digital branch

lateral dorsal common digital branch

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27
Q

medial dorsal common digital branch of the intermediate dorsal cutaneous nerve divides into

A

2 dorsal proper digital branches for the sin on the adjacent sides of the 3rd and 4th toes

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28
Q

lateral dorsal common digital branch of the intermediate dorsal cutaneous nerve divides into

A

2 dorsal proper digital branches for the skin on the adjacent sides of the 4th and 5th toes

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29
Q

lateral dorsal common digital br. of the intermediate dorsal cutaneous n. communicates with

A

the lateral dorsal cutaneous nerve

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30
Q

the intermediate dorsal cutaneous n. innervates

A

the skin on the dorsointermediate side of the foot

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31
Q

the intermediate dorsal cutaneous nerve may also branch from

A

sural n.
OR
lateral dorsal cutaneous n

32
Q

lateral dorsal cutaneous nerve is a continuation of

A

sural nerve as it course below the lateral malleolus

33
Q

the lateral dorsal cutaneous nerve course along

A

the dorsoateral side of the foot innervating the skin in this region

34
Q

the lateral dorsal cutaneous nerve terminates as

A

a dorsal proper digital nerve to the dorsolateral side of the 5th toe

35
Q

the lateral dorsal cutaneous nerve communicates with

A

the lateral dorsal common digital branch of the intermediate dorsal cutaneous n

36
Q

saphenous nerve is a branch of

A

the femoral nerve in the thigh

37
Q

saphenous nerve courses with

A

the great saphenous vein in the leg

38
Q

saphenous nerve terminates on

A

the dorsum of the foot

39
Q

on the dorsum of the foot the saphenous n. innervates

A

the skin on the medial side of the foot up to the 1st MTP

40
Q

saphenous n. is the only nerve of the foot that is not a branch of

A

the sciatic nerve

41
Q

medial plantar n. is a branch of

A

tibial n

42
Q

medial plantar n courses

A

distally with the medial plantar vessels b/w abductor hallucis and flexor hallucis brevis

43
Q

as the medial plantar n. courses distally it gives off

A

cutaneous, muscuarl and articular branches

44
Q

medial plantar n terminates by

A

dividing into a plantar proper digital and 3 plantar common digital branches

45
Q

cutaneous branches of the medial plantar n innervate

A

the skin on the medioplantar aspect of the foot

46
Q

muscular branches of the medial plantar nerve innervate — before medial plantar nerve divides

A
  • abductor halluics

- FHB

47
Q

articular branches of the medial plantar nerve innervate

A

joints on the medial portion of the tarsus

48
Q

plantar proper digital br of the medial plantar n innervates

A
  • FHB

- skin on the medioplantar aspect of the hallux

49
Q

1st planatar common digital branch of the medial plantar nerve innervates

A

1st lumbrical muscle, then divides into 2 plantar proper digital branches for the skin on the adjacent sides of the hallux and 2nd toes

50
Q

2nd plantar common digital br of the medial plantar nerve divides into

A

2 plantar proper digital branches for the skin on the adjacent sides o the 2nd and 3rd toes

51
Q

3rd plantar common digital br of the medial plantar nerve divides into

A

2 plantar proper digital branches fot ehs kin on the adjacent sides of the 3rd and 4th toes

52
Q

3rd plantar common digital br of the medial plantar nerve communicates with

A

plantar common digital br of the superficial division of the lateral plantar n

53
Q

3rd plantar common digital br is the common site of

A

a Morton’s neuroma

54
Q

lateral plantar n. is a branch of

A

tibial n

55
Q

lateral plantar n. courses

A

distally giving off cutaneous, muscular and articular branches

56
Q

lateral plantar n. terminates by

A

dividing into a superficial and deep branch

57
Q

cutaneous branch of the lateral plantar n. innervates

A

skin on the lateroplantar aspect of the foot

58
Q

muscular branches of the lateral plantar n innervate

A

aductor digiti minimi
quadratus plantae
before the lateral plantar nerve divides into a superficial and deep branch

59
Q

articular branch of the lateral plantar n. innervate

A

joints on the lateral portion of the tarsus

60
Q

entrapment of the 1st branch of the lateral plantar n. to the abductor digiti minimi is called

A

Baxter’s Nerve

61
Q

Baxter’s nerve causes —pain

A

heel pain due to its sensory innervations of the periosteum of the calcaneus in this area

62
Q

superficial branch of the lateral plantar n divides into

A

plantar proper digital br

plantar common digital br

63
Q

plantar proper digital br of the superficial br innervates

A

FDMB
4th dorsal interosseous
3rd plantar interosseous
skin on the lateroplantar aspect of the 5th toe

64
Q

plantar common digital br of the lateral plantar n. divides into

A

2 plantar proper digital branches for the skin on the adjacent sides of the 4th and 5th toes

65
Q

plantar common digital br of the lateral plantar n. communicates with

A

3rd plantar common digital br of the medial plantar n

66
Q

deep branch of the lateral plantar n courses with

A

the plantar arch portion of the lateral plantar a

67
Q

deep branch of the lateral plantar n innervates

A

adductor hallucis
2nd, 3rd, 4th lumbricals
1st, 2nd, 3rd dorsal interosseous
1st, 2nd plantar interosseous

68
Q

medial calcaneal n is a branch of

A

tibial n

69
Q

medial calcaneal n. innervates

A

skin on the plantar and medial aspect of the heel

70
Q

entrapment of the medial calcaneal n. is a common cause of

A

heel pain

71
Q

lateral calcaneal n. is a branch of

A

sural n

72
Q

lateral calcaneal n. innervates

A

skin on the posterior and lateral aspect of the heel

73
Q

dorsal proper digital nerves terminate

A

around the base and sides of the nails

74
Q

plantar proper digital nerves terminate

A

in the area of the ungual tuberosity by sending branches to the distal end of the digit

75
Q

to form a digital black, what nerves are anesthetized

A

all 4 digital nerves

LEA ( Ashley) (11 decks)

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