Talocrural joint - Talocrural joint

Japanese: 距腿関節 - きょたいかんせつ

…All of these bones can be felt from the surface of the skin, but the calcaneus is particularly important because it is large and strong, protruding downward and backward to form the support of the heel, and because it is the site of the largest tendon in the human body, the Achilles tendon. The joint between the lower leg and the tarsus is called the talocrural joint, because the talus fits between the tibia and fibula. All of the other bones in the foot are connected to each other by joints, and are reinforced by ligaments. …

From [Joints]

...the patella reduces the friction that occurs between the bone and muscles when the knee is bent and straightened.
[Ankle joint]
The ankle joint is also called the ankle joint. The talus fits into the fossa formed by the lower ends of the tibia and fibula as its head.

*Some of the terminology that refers to the "talocrural joint" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…これらの骨はいずれも皮膚の表面からさわることができるが，なかでも踵骨は，大きくて，強く後ろ下のほうに突き出してかかとの支柱をなし，また人体最大の腱，アキレス腱がつくので重要である。下腿と足根との間の関節は脛骨と腓骨の間に距骨がはまりこんでできるので，これを距腿関節という。このほか足の骨の間はいずれも隣どうしが関節で連結され，靱帯（じんたい）で補強されている。…