Talus bone

Talus bone
Talus bone
	Anatomy of the right foot
	Subtalar Joint, viewed from an angle between lateral and frontal.
Details
Identifiers
Latin	os talus, astragalus
MeSH	D013628
TA98	A02.5.10.001
TA2	1448
FMA	9708
	Anatomical terms of bone

The talus (/ˈteɪləs/; Latin for ankle^[1] or ankle bone;^[2] pl.: tali), talus bone, astragalus (/əˈstræɡələs/), or ankle bone is one of the group of foot bones known as the tarsus. The tarsus forms the lower part of the ankle joint. It transmits the entire weight of the body from the lower legs to the foot.^[3]

The talus has joints with the two bones of the lower leg, the tibia and thinner fibula. These leg bones have two prominences (the lateral and medial malleoli) that articulate with the talus. At the foot end, within the tarsus, the talus articulates with the calcaneus (heel bone) below, and with the curved navicular bone in front; together, these foot articulations form the ball-and-socket-shaped talocalcaneonavicular joint.

The talus is the second largest of the tarsal bones;^[4] it is also one of the bones in the human body with the highest percentage of its surface area covered by articular cartilage. It is also unusual in that it has a retrograde blood supply, i.e. arterial blood enters the bone at the distal end.^{[citation needed]}

In humans, no muscles attach to the talus, unlike most bones, and its position therefore depends on the position of the neighbouring bones.^[5]

^ Mosby's Medical, Nursing & Allied Health Dictionary, Fourth Edition, Mosby-Year Book Inc., 1994, p. 1526
^ Lewis, Charlton T.; Short, Charles (1879). "tālus". A Latin Dictionary. Clarendon Press. Archived from the original on 2021-11-20 – via the Perseus Project.
^ Platzer (2004), p 216
^ Cite error: The named reference Melenevsky was invoked but never defined (see the help page).
^ Bojsen-Møller, Finn; Simonsen, Erik B.; Tranum-Jensen, Jørgen (2001). Bevægeapparatets anatomi [Anatomy of the Locomotive Apparatus] (in Danish) (12th ed.). Munksgaard Danmark. p. 301. ISBN 978-87-628-0307-7.

[1] Mosby's Medical, Nursing & Allied Health Dictionary, Fourth Edition, Mosby-Year Book Inc., 1994, p. 1526

[2] Lewis, Charlton T.; Short, Charles (1879). "tālus". A Latin Dictionary. Clarendon Press. Archived from the original on 2021-11-20 – via the Perseus Project.

[Platzer-216-3] Platzer (2004), p 216

[Melenevsky-4] Cite error: The named reference Melenevsky was invoked but never defined (see the help page).

[Bojsen-5] Bojsen-Møller, Finn; Simonsen, Erik B.; Tranum-Jensen, Jørgen (2001). Bevægeapparatets anatomi [Anatomy of the Locomotive Apparatus] (in Danish) (12th ed.). Munksgaard Danmark. p. 301. ISBN 978-87-628-0307-7.

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