The tarsus is the skeleton of the ankle
Location of the tarsus
The tarsus is a set of bones making up the skeleton of the ankle located between the leg bones (tibia, fibula) and the foot bones (the metatarsal bones).
Structure of the tarsus
The tarsus is a group of seven tarsal bones:
- the calcaneus, the largest tarsal bone which is the heel bone;
- the astragalus or talus, into which the tibia and fibula rest;
- the cuboid bone;
- the navicular bone;
- and the three cuneiform bones (intermediary, lateral, and medial).
Function of the tarsus
The tarsus forms part of the plantar arch, particularly the heel, and supports the whole body.
The seven bones of the tarsus seen from beneath (left) or above (right): A=calcaneus; B=talus; C=cuboid; D=navicular bone; E=lateral cuneiform; F=intermediary cuneiform; G=median cuneiform. © Tubantia, Wikimedia, CC by-sa 3.0