Which tarsal bone is commonly referred to as the heel bone?

The tarsal bone commonly referred to as the heel bone is the calcaneus. This bone is the largest of the tarsal bones and forms the posterior part of the foot. Its primary function includes providing support and stability while standing and walking, and it acts as a key attachment point for the Achilles tendon, which is crucial for foot movement and propulsion. The calcaneus also bears the weight of the body when standing and forms the foundation for the subtalar joint, which is important for foot mobility. Understanding the significance of the calcaneus highlights its vital role in both the structure and function of the foot.