Calcaneus bone

Calcaneus Bone

The calcaneus bone or heel bone is a large bone that forms the foundation of the rear part of the foot. The calcaneus is the largest of the tarsal bones and has a hard, shell-like outer part and a soft, spongy interior to absorb the weight of the body and its movements.

Anatomy

The calcaneus bone is located at the back of the foot, below the talus bone, and in front of the cuboid bone. It is the point of attachment for several muscles and ligaments, including the Achilles tendon, which is the strongest and largest tendon in the body.

The calcaneus has several important surfaces: the superior surface, the inferior surface, the lateral surface, the medial surface, and the posterior surface. Each of these surfaces has specific features and landmarks that are important in the anatomy and function of the foot.

Function

The primary function of the calcaneus bone is to support the weight of the body during standing and locomotion. It also serves as a lever for muscles that elevate the body and move the foot.

The calcaneus plays a crucial role in the body's balance and stability. It helps to maintain the center of gravity of the body and enables the foot to adapt to uneven surfaces.

Clinical Significance

Injuries to the calcaneus bone, such as fractures, can be debilitating and require significant medical intervention. Calcaneal fractures are often associated with falls from height and motor vehicle accidents.

Conditions such as plantar fasciitis and Achilles tendinitis can also affect the calcaneus bone and cause heel pain. These conditions are often related to overuse or strain of the foot.

See Also

• Foot
• Tarsal bones
• Achilles tendon