Identify the tarsal that articulates with the tibia and fibula.

Astragalus or talus, tarsal bone that articulates with the tibia and fibula to form the ankle joint

Explanation:

Astragalus or talus bone is a tarsal bone of the hindfoot. There are approximately 26 bones in the human foot grouped into 3 parts: tarsal bones, metatarsal bones and phalanges.

The foot itself can be divided into 3 parts

-  Rear foot or rearfoot

- Middle part of foot

- Forefoot

The hind foot is formed by the talus and calcaneus bone, two of the seven bones of the tarsus. The rest of the five bones of the tarsus are part of the midfoot. Forefoot contains metatarsals and phalanges.

The talus is the second largest tarsal bone and is located above the calcaneus in the hindfoot

Astragalus is a unique bone. Two thirds of the talar surface are covered with articular cartilage. Neither tendons nor muscles are inserted or originated from this bone. The talus is articulated with 4 bones: the tibia, the fibula, the calcaneus and the navicular.

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