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Anatomy > Foot > Flashcards

Foot Flashcards

1
Q

What are the attachments of extensor digitorum brevis?

A

Origin - calcaneus, interosseous talocalcaneal ligament and inferior extensor retinaculum
Insertion - long extensor tendons of lateral 4 digits

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2
Q

What are the actions of extensor digitorum brevis?

A

Extension of lateral 4 digits at metatarsophalangeal and interphalangeal joints

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3
Q

Which nerve supplies the muscles of the dorsum of the foot?

A

Deep fibular nerve

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4
Q

What are the muscles of the dorsum of the foot called?

A

Extensor digitorum brevis and extensor hallucis brevis

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5
Q

What are the attachments of extensor hallucis brevis?

A

Origin - calcaneus, interosseous talocalcaneal ligament and inferior extensor retinaculum
Insertion - base of proximal phalanx of big toe

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6
Q

What are the actions of extensor hallucis brevis?

A

Extension of the big toe at metatarsophalangeal joint

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7
Q

How many layers of muscles does the plantar aspect of the foot have?

A

Four

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8
Q

Which muscles make up the first layer of the plantar aspect of the foot?

A

Flexor digitorum brevis, abductor hallucis and abductor digiti minimi

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9
Q

What are the attachments of flexor digitorum brevis?

A

Origin - medial tubercle of calcaneus and plantar aponeurosis
Insertion - middle phalanges of lateral 4 digits

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10
Q

What are the actions of flexor digitorum brevis?

A

Flexion of lateral 4 digits at proximal interphalangeal joint

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11
Q

What nerve supplies flexor digitorum brevis?

A

Medial plantar nerve

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12
Q

What are the attachments of abductor hallucis?

A

Origin - medial tubercle of calcaneus, flexor retinaculum and plantar aponeurosis
Insertion - medial base of proximal phalanx of big toe

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13
Q

What are the actions of abductor hallucis?

A

Abduction and flexion of big toe

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14
Q

What nerve supplies abductor hallucis?

A

Medial plantar nerve

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15
Q

What are the attachments of abductor digiti minimi?

A

Origin - medial and lateral tubercles of calcaneus and plantar aponeurosis
Insertion - lateral base of proximal phalanx of fifth digit

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16
Q

What are the actions of abductor digiti minimi?

A

Abduction and flexion of fifth toe

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17
Q

Which nerve supplies abductor digiti minimi?

A

Lateral plantar nerve

18
Q

Which muscles are in the second layer of the plantar aspect of the foot?

A

Lumbricals and quadratus plantae

Also tendons of flexor hallucis longus and flexor digitorum longus

19
Q

What are the actions of the lumbricals?

A

Flexion at metatarsophalangeal joints and extension at interphalangeal joints

20
Q

What are the attachments of quadratus plantae?

A

Origin - medial and lateral plantar surface of calcaneus

Insertion - tendons of flexor digitorum longus

21
Q

What is the action of quadratus plantae?

A

Flexion of lateral 4 digits

22
Q

Which nerve supplies quadratus plantae?

A

Lateral plantar nerve

23
Q

Which muscles make up the third layer of the plantar aspect of the foot?

A

Flexor hallucis brevis, flexor digiti minimi and adductor hallucis

24
Q

What are the two heads of adductor hallucis called?

A

Transverse and oblique heads

25
Q

Which muscles make up the fourth layer of the plantar aspect of the foot?

A

Dorsal and plantar interossei

26
Q

How many dorsal interossei are there?

A

Four

27
Q

How many plantar interossei are there?

A

Three

28
Q

What action do the dorsal interossei have?

A

Abduction of the toes

29
Q

What action do the plantar interossei have?

A

Adduction of the toes

30
Q

Which muscles are responsible for extension of the big toe?

A

Extensor hallucis longus and brevis

31
Q

Which muscles are responsible for flexion of the big toe?

A

Flexor hallucis longus, flexor hallucis brevis and abductor hallucis

32
Q

Which muscle is responsible for abduction of the big toe?

A

Abductor hallucis

33
Q

Which muscle is responsible for adduction of the big toe?

A

Adductor hallucis

34
Q

Which muscles are responsible for extension of the lateral four toes?

A

Extensor digitorum longus and brevis

35
Q

Which muscles are responsible for flexion of the lateral four toes?

A

Flexor digitorum longus, flexor digitorum brevis and quadratus plantae

36
Q

Which muscles are responsible for abduction of the lateral four toes?

A

Dorsal interossei

37
Q

Which muscles are responsible for adduction of the lateral four toes?

A

Plantar interossei

38
Q

Which muscles are responsible for flexion of the fifth toe?

A

Flexor digitorum longus, flexor digitorum brevis, quadratus plantae, abductor digiti minimi, flexor digiti minimi

39
Q

Which muscles are responsible for extension of the fifth toe?

A

Extensor digitorum longus and brevis

40
Q

Which muscle is responsible for abduction of the fifth toe?

A

Abductor digiti minimi

41
Q

Which muscle is responsible for adduction of the fifth toe?

A

Plantar interossei

Anatomy (15 decks)

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