Head of talus
The talus bone
Talus bone
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 of the ankle
The ankle joint is formed where the foot and the leg meet. The ankle, or talocrural joint, is a synovial hinge joint that connects the distal ends of the tibia and fibula in the lower limb with the proximal end of the talus bone in the foot...

 joint connects the leg to the foot.
For descriptive purposes the talus bone is divided into three sections, neck
Neck of talus
The neck of talus is directed forward and medialward, and comprises the constricted portion of the bone between the body and the oval head.Its upper and medial surfaces are rough, for the attachment of ligaments; its lateral surface is concave and is continuous below with the deep groove for the...

, body
Body of talus
The body of the talus comprises most of the volume of the talus bone. It presents with five surfaces.-Superior surface:The superior surface of the body presents, behind, a smooth trochlear surface, the trochlea, for articulation with the tibia....

 and head of talus.

The head of talus looks forward and medialward; its anterior
Anatomical terms of location
Standard anatomical terms of location are designations employed in science that deal with the anatomy of animals to avoid ambiguities that might otherwise arise. They are not language-specific, and thus require no translation...

 articular or navicular surface is large, oval, and convex. Its inferior surface has two facets, which are best seen in the fresh condition.

The medial
- Medial magmas :In abstract algebra, a medial magma is a set with a binary operation which satisfies the identity \cdot = \cdot , or more simply, xy\cdot uv = xu\cdot yv...

, situated in front of the middle calcaneal facet, is convex, triangular, or semi-oval in shape, and rests on the plantar calcaneonavicular ligament
Plantar calcaneonavicular ligament
The plantar calcaneonavicular ligament is a ligament on the underside of the foot that connects the calcaneus with the navicular bone.-Structure:...

; the lateral, named the anterior calcaneal articular surface, is somewhat flattened, and articulates with the facet on the upper surface of the anterior part of the calcaneus.
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