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CAT Anatomy > Ankle > Flashcards

Ankle Flashcards

1
Q

What type of joint is the inferior tibfib?

A

fibrous (syndesmosis)

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2
Q

What ligaments support the inferior tibfib joint?

A
  1. strong interosseus ligament

2. Ant and post talofibular ligaments

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3
Q

What is the blood supply of the inferior tib fib joint?

A

peroneal and anterior tibial arteries

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4
Q

What is the nerve supply of the inferior tib fib joint?

A

Deep peroneal and tibial nerves

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5
Q

What is the classification of the talocrural joint?

A

Hinge joint

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6
Q

What is the articulation of the talocrural joint?

A

tibia, fibula and talus

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7
Q

what type of cartilage is on the articular surfaces of the talocrural joint?

A

hyaline

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8
Q

what does cartilage do?

A

allows for friction free movement and is a shock absorber

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9
Q

Describe the capsule of the talocrural joint?

A

Fibrous capsule completely surrounds the joint and attaches to the posterior tibfib ligament posteriorly.

It is thin and weak in front and behind to allow movements. Capsule is strengthened laterally by collateral ligaments

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10
Q

What ligaments support the talocrural joint?

A

medially (deltoid lig)
deep= posterior and anterior tibiotalar ligament.
superficial= tibiocalcaneal and tibionavicular ligaments.

Laterally
ATFL, PTFL, CFL

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11
Q

How many degrees of freedom does the talocrural joint have?

A

one degree

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12
Q

what is the blood supply of the talocrural joint?

A

ant and post tibial arteries

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13
Q

What is the nerve supply of the talocrural joint?

A

branches of deep peroneal and tibial nerves

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14
Q

What muscles plantarflex the foot?

A

tibialis posterior, FDL, FHL (tom,dick and harry)

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15
Q

What muscles dorsiflex the foot?

A

tib ant, EHL, EDL

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16
Q

What type of joint is the subtalar joint?

A

synovial plane joint

17
Q

What is the articulation of the subtalar joint?

A

talus and calcaneus

inferior surface of the body of the talus

18
Q

What ligaments support the subtalar joint?

A

post, medial and lat talocalcaneal ligaments (capsule supported by these).
Interosseus ligament

19
Q

What is inversion a combination of?

A

Talocrural plantarflexion and foot supination and adduction

20
Q

What is eversion a combination of?

A

Talocrural dorsiflexion and foot pronation and abduction

21
Q

What is the nerve supply of the subtalar joint?

A

Plantar aspect from the medial or lateral plantar nerve.

Dorsal aspect by the deep fibular nerve.

22
Q

What is the blood supply of the subtalar joint?

A

Posterior tibial and fibular arteries.

23
Q

What muscles perform inversion?

A

tib ant and tib post

24
Q

What muscles perform eversion?

A

peroneus long and brev

CAT Anatomy (1 decks)

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