The Ankle Joint

Question 1

What is the ankle type of joint?

Answer 1

Hinge synovial joint

Question 2

What is a mortise type of joint?

Answer 2

The ankle is a type of mortise joint – meaning that the bones at the superior aspect of the joint provide a socket in which the talus fits into and can fit into a move.

Question 3

The articular surfaces of the ankle are:

Answer 3

The distal end of the tibia and fibular with the superior part of the talus bone.

The malleoli grip the talus tightly during the movements of the ankle joint.

The malleolar grip is strongest during dorsiflexion movement of the ankle joint.

Question 4

Answer 4

1. Deltoid ligament: Tibiovanciular part
2. Deltoid ligament: Tibotalar part

Question 5

Answer 5

3. Lateral collateral ligament: posterior tibiofibular ligament

4. Anterior inferior tibiofibular ligament

5. Lateral collateral ligament: calcaneofibular part

6. Lateral collateral ligament: anterior talofibular part

Question 6

Which ligament of ankle joint is the weakest?

Answer 6

Anterior inferior tibiofibular ligament

Question 7

Which ligament of the ankle joint is named the deltoid ligament?

Answer 7

Medial ankle ligament

Question 8

During which movements of the subtalar joint are ankle sprains more common?

Answer 8

Plantar flexion and inversion

Question 9

Because of the strength of these ligaments both over inversion and eversion of the ankle joint can cause what?

Answer 9

Fractures to the either the medial or lateral malleoli.

Question 10

What are the muscles involved in dorsiflexion?

Answer 10

Tibialis anterioer, extensor hallicus longus and extensor digitorum longus

Question 11

What are the muscles involved in plantarflxion?

Answer 11

Posterior compartment: Gastrocnemius, soleus, plantaris, flexor hallucis longus, flexor digitorum longus, tibialis posterior, peroneus longus, peroneus brevis