Joint of the Leg

Question 1

proximal tibiofibular joint

Answer 1

plane type of joint

b/w facet on fibular head and facet located on lateral condyle of tibia (posterolaterally)

Question 2

distal talofibular joint

Answer 2

essential for the integrity of the ankle joint (stabilization)

keeps the lateral malleolus firmly against the lateral surface of the talus

Question 3

talocrural joint

Answer 3

ankle joint

hinge type of joint

located b/w distal ends of tibia and fibula and superior part of talus

distal end of tib and fib create a mortise

Question 4

what does the mortise do in the talocrural joint

Answer 4

articulates with the trochlear of the talus

fits perfectly –> stabilization

narrower posteriorly than anteriorly

Question 5

articulations of the talocural joint

Answer 5

medial surface of the lateral malleolus w/ lateral surface of talus

tibia articulates in 2 places

Question 6

where does the tibia articulate with the talus within the talocrural joint

Answer 6

inferior surface of the tibia forms the roof of the malleolar mortise to transfer BW to the talus

medial malleolus of the tibia w/ the medial surface of the talus

Question 7

ligaments of the talocrural joint

Answer 7

collateral

lateral

medial

Question 8

collateral ligaments of the talocrural joint

Answer 8

medial and lateral

Question 9

lateral ligaments of the talocrural joint

Answer 9

anterior talofibular

posterior talofibular

calcaneofibular ligament

Question 10

anterior talofibular ligament

Answer 10

more commonly sprained ligament in lateral ankle sprains

weaker and flatter band than others

Question 11

medial ligaments of the ankle

Answer 11

deltoid ligament

Question 12

deltoid ligament

Answer 12

less likely to be injured b/c of how thick and strong it is

Question 13

movements of the talocrural joint

Answer 13

dorsiflexion (muscles in anterior compartment of leg)

plantar flexion (muscles in the posterior compartment of the leg)