MCQ Detailed View

The calcaneus is the largest bone in the human foot and forms the heel. It is a critical part of the skeletal system, supporting the weight of the body when standing, walking, or running. Anatomically, it is located at the posterior (back) part of the foot and connects with the talus bone above and the cuboid bone in front, forming part of the foot’s structure known as the hindfoot.

The calcaneus plays a key role in locomotion and balance. It acts as a lever for the Achilles tendon, which attaches to its posterior surface. When the calf muscles contract, they pull on the Achilles tendon, allowing the foot to push off the ground while walking or running. This makes the calcaneus essential for movements such as jumping, running, and standing on tiptoe.

The structure of the calcaneus also helps absorb and distribute forces from the body’s weight. Its thick, strong bone tissue protects the foot from injury while providing a stable base for other bones of the foot. Any fracture or injury to the calcaneus can significantly affect mobility, making it one of the most important bones for human biomechanics.

From an anatomical perspective, the calcaneus is part of the tarsal bones group, which includes seven bones that form the rear part of the foot. Understanding its position and function is fundamental in human anatomy, orthopedics, and sports science, as it directly influences posture, balance, and gait.

The calcaneus is therefore not located in the hand, arm, or skull, but in the heel, supporting both movement and body weight efficiently.