Tarsal joint

Tarsal Joint

The tarsal joint, also known as the ankle joint, is a complex structure in the human body that connects the leg to the foot. It is composed of three main bones: the tibia, the fibula, and the talus. The tarsal joint is responsible for the up and down movement of the foot.

Anatomy

The tarsal joint is a hinge joint, allowing movement in one plane. The tibia and fibula form a bracket-shaped socket, known as the mortise, which the talus fits into. The talus is the only bone in the foot that has direct contact with the leg. The calcaneus, or heel bone, is the largest bone in the foot and sits beneath the talus.

Function

The primary function of the tarsal joint is to allow the foot to move up (dorsiflexion) and down (plantarflexion). This movement is essential for walking, running, and jumping. The tarsal joint also plays a crucial role in maintaining balance and supporting the body's weight.

Disorders and Injuries

There are several common disorders and injuries that can affect the tarsal joint. These include sprains, fractures, arthritis, and tarsal tunnel syndrome. Treatment for these conditions can range from rest and physical therapy to surgery.

See Also

• Ankle
• Foot
• Tibia
• Fibula
• Talus
• Calcaneus

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