asked 225k views
2 votes
(1) the proximal tibiofibular joint, (2) the distal tibiofibular joint, and (3) the fibulotalar joint.

Option 1:
The tibiofibular joints are not related to the fibulotalar joint.

Option 2:
The tibiofibular joints do not play a role in ankle movement.

Option 3:
The proximal and distal tibiofibular joints are the same.

Option 4:
The proximal tibiofibular joint, distal tibiofibular joint, and fibulotalar joint are distinct components of the lower limb.

1 Answer

6 votes

Final answer:

In the human skeletal system, the proximal and distal tibiofibular joints are distinct from the fibulotalar joint. The tibiofibular joints contribute to the stability of the ankle, while the fibulotalar joint is responsible for dorsiflexion and plantar flexion.

Step-by-step explanation:

The proximal tibiofibular joint is where the head of the fibula articulates with the inferior aspect of the lateral tibial condyle. The distal tibiofibular joint is a syndesmosis formed by the interosseous membrane and ligaments, critically involved in ankle stability by preventing separation of the tibia and fibula and maintaining the talus in place. Contrary to the tibiofibular joints which are synovial and syndesmotic joints respectively, the fibulotalar joint (the talocrural joint) is a joint involving articulation between the talus and both malleoli that primarily allows for dorsiflexion and plantar flexion of the foot. Option 4 is correct as the proximal tibiofibular joint, distal tibiofibular joint, and fibulotalar joint are distinct components each with specific functions and characteristics.

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