Also called: ankle bone, astragalus
The talus is the tarsal bone that links the leg to the foot. Its dome articulates with the tibia and fibula at the ankle joint and it rests on the calcaneus at the subtalar joint. It has no muscle attachments and is largely covered by articular cartilage.
| Type | Short (tarsal) bone. |
|---|---|
| Location | Between the tibia and fibula above and the calcaneus below. |
| Landmarks | Head, neck, body, trochlea, lateral and posterior processes. |
| Articulations | Tibia and fibula (ankle joint), calcaneus (subtalar joint), navicular (talonavicular joint). |
| Muscle attachments | None; ligaments attach to it. |
3D model: BodyParts3D (CC BY 4.0), adult male reference anatomy. Highlighted structure shown with nearby bones for context.
The wedge shape of the trochlea makes the ankle most stable when the foot is dorsiflexed. Its blood supply enters through the neck, in a retrograde manner.
No. It has ligamentous attachments only.
The ankle (talocrural), subtalar and talonavicular joints.
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