Navicular bone
bone of the ankle
The navicular bone is a small bone found in the feet of most mammals.
Human anatomy
The navicular bone in humans is one of the tarsal bones, found in the foot. Its name derives from the human bone's resemblance to a small boat, caused by the strongly concave proximal (i.e., posterior) articular surface. The term navicular bone or hand navicular bone was historically used for the scaphoid bone, one of the carpal bones of the wrist.
The navicular bone in humans is located on the medial side of the foot, and articulates proximally with the talus, distally with the three cuneiform bones, and laterally with the cuboid.
It is the last of the foot bones to start ossification and does not tend to do so until the beginning of the fourth year in typical anatomy, although a large range of variation has been reported.
The tibialis posterior is the only muscle that attaches to the navicular bone. The main portion of the muscle inserts into the tuberosity of the navicular bone. An accessory navicular bone may be present in 2–14% of the general population.
Clinical significance
The human navicular is not a commonly broken bone but it breaks due to two reasons.
The public source identifies “Navicular bone” as bone of the ankle. This brief keeps that definition visible, then builds a research path around Navicular, bone and ankle.
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This entry incorporates text from “Navicular bone” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.