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Musculoskeletal Anatomy > OIA on Feet > Flashcards

OIA on Feet Flashcards

(48 cards)

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1
Q

extensor hallucis brevis origin

A

dorsal surface of calcaneus

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2
Q

extensor hallucis brevis insertion

A

base of proximal phalanx of hallux (dorsal surface)

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3
Q

extensor hallucis brevis action

A

extension of hallux

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4
Q

extensor hallucis brevis innervation

A

deep fibular

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5
Q

extensor digitorum brevis origin

A

dorsal surface of anterolateral calcaneus

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6
Q

extensor digitorum brevis insertion

A

base of middle phalanx of digits 2-4 (on lateral side of extensor digitorum longus tendons)

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7
Q

extensor digitorum brevis action

A

extension of digits 2-4

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8
Q

extensor digitorum brevis innervation

A

deep fibular (peroneal)

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9
Q

abductor hallucis origin

A
  1. medial process of calcaneal tuberosity

2. plantar aponeurosis

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10
Q

abductor hallucis insertion

A

base of proximal phalanx of hallux (medial side)

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11
Q

abductor hallucis action

A

flexion and abduction of hallux

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12
Q

abductor hallucis innervation

A

medial plantar

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13
Q

flexor digitorum brevis origin

A
  1. medial process of calcaneal tuberosity (anterior aspect)

2. plantar aponeurosis

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14
Q

flexor digitorum brevis insertion

A

splits to attach on both sides of the middle phalanx of digits 2-5

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15
Q

flexor digitorum brevis action

A

flexion of digits 2-5

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16
Q

flexor digitorum brevis innervation

A

medial plantar

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17
Q

abductor digiti minimi origin

A

lateral process of calcaneal tuberosity

plantar aponeurosis

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18
Q

abductor digiti minimi insertion

A

base of proximal phalanx of 5th digit (lateral side)

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19
Q

abductor digit minimi action

A

abudction of 5th digit

assists in flexion of 5th digit at MTP joint

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20
Q

abductor digiti minimi innervation

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A

lateral plantar

21
Q

quadratus plantae origin

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A

medial head: medial calcaneal tuberosity (plantar side)

lateral head: lateral calcaneal tuberosity (plantar side)

22
Q

quadratus plantae insertion

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A

tendon of flexor digitorum longus (lateral border)

23
Q

quadratus plantae action

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A

assists in flexion of digits 2-5 by offsetting the oblique pull of the flexor digitorum longus

24
Q

quadratus plantae innervation

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A

lateral plantar

25
lumbricals origin
tendons of flexor digitorum longus (medial borders)
26
lumbricals insertion
proximal phalanges and extensor tendons of digits 2-5 (medial sides)
27
lumbricals (1-4) action
flexion of MTP joints and extension of IP joints (via extensor hood mechanism) of digits 2-5
28
lumbricals (1-4) innervation
1st: medial plantar | 2-4: lateral plantar
29
flexor hallucis brevis origin
cuboid and lateral cuneiforms (plantar surfaces)
30
flexor hallucis brevis insertion
base of proximal phalanx of hallux
31
flexor hallucis brevis action
flexion of hallux
32
flexor hallucis brevis innervation
medial plantar
33
adductor hallucis origin
oblique head: bases of metatarsals 2-4 | transverse head: plantar ligaments at MTP joints 3-5 and transverse metatarsal ligament
34
adductor hallucis insertion
base of proximal phalanx of hallux (lateral aspect)
35
adductor hallucis action
1. adduction of hallux | 2. assists in flexion of hallux
36
adductor hallucis innervaiton
lateral plantar
37
flexor digiti minimi (brevis) origin
base of 5th metatarsal
38
flexor digiti minimi (brevis) insertion
base of proximal phalanx of 5th digit (lateral aspect)
39
flexor digiti minimi (brevis) action
flexion of proximal phalanx of 5th digit
40
flexor digiti minimi brevis innervation
lateral plantar
41
dorsal interossei(1-4) origin
from both metatarsals from between which they lie
42
dorsal interossei insertion
1. proximal phalanx of digit 2 medially 2. proximal phalanx of digit 2 laterally 3. proximal phalanx of digit 3 laterally 4. proximal phalanx of digit 4 laterally
43
dorsal interossei (1-4) action
1. abduction of digits 2-4 | 2. flexion of MTP and extension of IP joints via extensor hood mechanism
44
dorsal interossei innervation
lateral plantar
45
plantar interossei origin
3-5 metatarsals (medial borders)
46
plantar interossei (1-3) insertion
base of proximal phalanx of the same digit (medial aspect)
47
plantar interossei (1-3) action
1. adduction of digits 3-5 | 2. flexion of MTP and extension of IP joints via extensor hood mechanism
48
plantar interossei (1-3) innervation
lateral plantar

Musculoskeletal Anatomy (7 decks)

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