What tarsal bone is commonly referred to as the "heel bone"?

The calcaneus is commonly referred to as the "heel bone" because it is the largest tarsal bone located at the back of the foot and forms the heel. Its primary role is to bear weight and provide stability when standing and walking. The calcaneus serves as an attachment point for several ligaments and tendons, including the Achilles tendon, which connects the calf muscles to the heel. This bone plays a crucial role in the biomechanics of the foot, particularly in absorbing impact during activities such as running and jumping.

In contrast, the other tarsal bones, such as the navicular, talus, and cuboid, serve different functions and do not have the prominent role in forming the heel structure that the calcaneus does.