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Anatomy Exam 3 POINAS > Lecture 17: Foot Instrinsics > Flashcards

Lecture 17: Foot Instrinsics Flashcards

(48 cards)

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1
Q

extensor digitorum brevis action

A

aids the extensor digitorum longus with digits 2-4 extension @MTP & IP joints

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2
Q

extensor digitorum brevis PA

A

calcaneus (floor of tarsal sinus)
interosseous talocalcaneal ligament
stem of inferior extensor retinaculum

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3
Q

extensor digitorum brevis DA

A

long extensor tendons of digits 2-4

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4
Q

extensor digitorum brevis nerve innervation

A

deep fibular nerve L5, S1

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5
Q

extensor hallucis brevis action

A

aids the extensor hallucis longus with great toe extension @ MTP & IP joints

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6
Q

extensor hallucis brevis PA

A

calcaneus (floor of tarsal sinus)
interosseous talocalcaneal ligament
stem of inferior extensor retinaculum

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7
Q

extensor hallucis brevis DA

A

dorsal aspect of base of proximal phalanx of great toe

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8
Q

extensor hallucis brevis nerve innervation

A

deep fibular nerve L5, S1

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9
Q

abductor hallucis action

A

1st digit abduction
1st digit flexion

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10
Q

abductor hallucis PA

A

medial tubercle of calcaneal tuberosity
plantar aponeurosis
intermuscular septa

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11
Q

abductor hallucis DA

A

base of proximal phalanx of 1st digit

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12
Q

abductor hallucis nerve innervation

A

medial plantar nerve L5, S1

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13
Q

flexor digitorum brevis action

A

digits 2-5 flexion @ MTP & PIP joints

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14
Q

flexor digitorum brevis PA

A

medial tubercle of calcaneal tuberosity
plantar aponeurosis
intermuscular septa

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15
Q

flexor digitorum brevis DA

A

both sides of middle phalanges of digits 2-5

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16
Q

flexor digitorum brevis nerve innervation

A

medial plantar nerve L5, S1

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17
Q

abductor digiti minimi action

A

5th digit abduction and flexion @ MTP & PIP joints

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18
Q

abductor digiti minimi PA

A

medial and lateral tubercles of calcaneal tuberosity
plantar aponeurosis
intermuscular septa

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19
Q

abductor digiti minimi DA

A

base of proximal phalanx of 5th digit

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20
Q

abductor digiti minimi nerve innervation

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A

lateral plantar nerve S1, S2, S3

21
Q

quadratus plantae action

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A

assists flexor digitorum longus with digits 2-5 flexion @ MTP & IP joints

22
Q

quadratus plantae PA

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A

medial calcaneus

23
Q

quadratus plantae DA

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A

flexor digitorum longus tendon

24
Q

quadratus plantae nerve innervation

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A

lateral plantar nerve S1, S2, S3

25
lumbricals action
of digits 2-5... MTP flexion PIP & DIP extension
26
lumbricals PA
flexor digitorum longus tendons
27
lumbricals DA
medial aspects of extensor expansions over digits 2-5
28
lumbricals nerve innervation
medial one: medial plantar nerve L5, S1 lateral three: lateral plantar nerve S1, S2, S3
29
adductor hallucis action
1st digit adduction assists in maintaining transverse arch by pulling metatarsals medially
30
adductor hallucis PA
oblique head: bases of metatarsals 2-4 transverse head: plantar ligaments of MTP joints
31
adductor hallucis DA
lateral side of base of proximal phalanx of 1st digit
32
adductor hallucis nerve innervation
lateral plantar nerve S1, S2, S3
33
flexor hallucis brevis action
1st MTP joint flexion
34
flexor hallucis brevis PA
plantar cuboid lateral cuneiforms
35
flexor hallucis brevis DA
both sides of base of proximal phalanx of 1st digit 2 sesamoid bones are contained within these tendons!
36
flexor hallucis brevis nerve innervation
medial plantar nerve L5, S1
37
flexor digiti minimi brevis action
5th MTP joint flexion
38
flexor digiti minimi brevis PA
base of 5th metatarsal
39
flexor digiti minimi brevis DA
base of 5th proximal phalanx
40
flexor digiti minimi brevis nerve innervation
lateral plantar nerve S1, S2, S3
41
plantar interossei action
digits 3-5 adduction @MTP joint
42
plantar interossei PA
plantar medial shafts of metatarsals 3-5
43
plantar interossei DA
medial phalanges of digits 3-5
44
plantar interossei nerve innervation
lateral plantar nerve S1, S2, S3
45
dorsal interossei action
digits 2-4 abduction @MTP joint
46
dorsal interossei PA
adjacent sides of shafts of metatarsals 1-5
47
dorsal interossei DA
1st: medial side of proximal phalanx of 2nd digit 2nd-4th: lateral sides of digits 2-4
48
dorsal interossei nerve innervation
lateral plantar nerve S1, S2, S3

Anatomy Exam 3 POINAS (4 decks)

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