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MSA II > ANKLE & FOOT ~ MUSCLES > Flashcards

ANKLE & FOOT ~ MUSCLES Flashcards

1
Q

2 intrinsic foot muscles on dorsal surface of foot

A

extensor digitorum brevis
extensor hallucis brevis

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2
Q

LAYER 1 (plantar foot muscles)

A

abductor hallucis
abductor digiti minimi
flexor digitorum brevis

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3
Q

LAYER 2 (plantar foot muscles)

A

quadratus plantae
lumbricals

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4
Q

LAYER 3 (plantar foot muscles)

A

flexor hallucis brevis
flexor digiti minimi
adductor hallucis

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5
Q

LAYER 4 (plantar foot muscles)

A

plantar interossei
dorsal interossei

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6
Q

1st toe flexion

A

flexor hallucis longus & brevis

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7
Q

toe 2-5 flexion

A

flexor digitorum longus & brevis
lumbricals

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8
Q

1st toe extension

A

extensor hallucis longus & brevis

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9
Q

toe 2-5 extension

A

extensor digitorum longus & brevis

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10
Q

ABDUCTION

A

dorsal interossei

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11
Q

ADDUCTION

A

plantar interossei

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12
Q

common fibular nerve

A

lateral & anterior leg

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13
Q

tibial nerve

A

posterior thigh & leg

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14
Q

PLANTAR FASCIA

A

-flat, thick band of connective tissue
-connects calcaneus to ligaments around heads of metatarsals
-supports arch on bottom of foot, very strong

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15
Q

PLANTAR FASCIITIS

A

if plantar fascia is stretched/ overworked & becomes inflamed

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16
Q

EXTENSOR DIGITORUM BREVIS

A

O: dorsal surface of calcaneus, lateral side
I: lateral sides of tendons of extensor digitorum longus to 2-4 digits
A: extends MTP joints 2-4 digits, assist in extending IP joints
N: deep peroneal nerve

17
Q

EXTENSOR HALLUCIS LONGUS

A

O: distal part of superior & lateral surface of calcaneus, lateral talocalcaneal ligament, apex of inferior extensor retinaculum
I: dorsal surface, base of proximal phalanx great toe
A: extend MTP joint of great toe
N: deep peroneal nerve

18
Q

ABDUCTOR HALLUCIS

A

O: medial process of calcaneal tuberosity, flexor retinaculum, plantar aponeurosis
I: medial side, base of proximal phalanx of great toe, some fibers attached to medial sesamoid bone
A: ABD, assist in flexion of MTP joint great toe, assist ADD forefoot
N: medial plantar nerve

19
Q

ABDUCTOR DIGITI MINIMI

A

O: calcaneal tuberosity, plantar aponeurosis, flexor retinaculum
I: base of proximal phalanx of 5th digit
A: ABD 5th digit
N: lateral plantar nerve

20
Q

FLEXOR DIGITORUM BREVIS

A

O: medial process calcaneal tuberosity
I: middle phalanges 2-5 digits
A: flex proximal IP joints 2-5 digits, assist in flexion of MTP joints
N: medial plantar nerve

21
Q

QUADRATUS PLANTAE

A

O: medial side: medial surface calcaneus & medial border long plantar ligament
O: lateral side: lateral border of plantar surface calcaneus & lateral border of long plantar ligament
I: lateral margin of tendon of flexor digitorum longus
A: modifies line of pull of flexor digitorum longus, assist in flexion 2-5 digits
N: lateral plantar nerve

22
Q

LUMBRICALS (4)

A

O: 1 - medial side 1st FDLT
O: 2 - adjacent side 1st & 2nd FDLT
O: 3 - adjacent side 2nd & 3rd FDLT
O: 4 - adjacent side 3rd & 4th FDLT
I: medial side of proximal phalanx & dorsal expansion of extensor digitorum longus tendon of 2-5 digits
A: flex MTP joints, assist in extending IP joints 2-5 digits
N: #1 mm belly: medial plantar nerve
N: #2-4 mm belly: lateral plantar nerve

23
Q

FLEXOR HALLUCIS BREVIS

A

O: cuboid bone, lateral cuneiform, tendon of tibialis posterior
I: medial & lateral sides of base of proximal phalanx great toe
A: flex MTP joint great toe
N: medial plantar nerve

24
Q

FLEXOR DIGITI MINIMI

A

O: base of 5th metatarsal & distal tendon peroneus longus
I: base of proximal phalanx 5th digit
A: flex MTP 5th digit
N: lateral plantar nerve

25
Q

ADDUCTOR HALLUCIS

A

O: oblique head - bases 2-4 metatarsals & tendon peroneus longus
O: transverse head - plantar metatarsophalangeal ligaments 3-5 digits
I: lateral side, base proximal phalanx great toe
A: ADD, assist in flexion MTP joint great toe
N: lateral plantar nerve

26
Q

PLANTAR INTEROSSEI (3)

A

O: bases & medial sides of bodies 3-5 metatarsals
I: bases & medial sides proximal phlanges same digit
A: ADD 3-5 digits toward axial line through 2nd digit, assist flexion MTP joints, may extend IP joints 3-5 digits
N: lateral plantar nerve

27
Q

DORSAL INTEROSSEI (4)

A

O: in between metatarsals
I: sides of proximal phalanx & capsule of MTP joint
I: 1 - medial side 2nd digit
I: 2-4 - lateral sides 2-4 digits
A: ABD 2-4 digits from axial line through 2nd digit, assist flexion MTP joints, may extend IP joints 2-4 digits
N: lateral plantar nerve

MSA II (15 decks)

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