Navicular bone

Navicular Bone

The Navicular bone is one of the bones of the foot located in the anatomical region known as the tarsus. It is named for its boat-like shape, with "navicular" derived from the Latin term navicula, meaning "little ship".

Structure

The navicular bone is situated on the medial side of the foot, proximal to the three cuneiform bones and distal to the talus. It articulates with four bones: the talus, and the three cuneiforms. The bone is roughly rectangular and has a tuberosity on its medial side, which is an important attachment point for tendons such as the tibialis posterior tendon.

Function

The navicular bone plays a crucial role in maintaining the medial longitudinal arch of the foot, which helps in distributing body weight and in shock absorption during walking or running. It also serves as a fulcrum for the tendons of several muscles, aiding in the complex movements of the foot.

Clinical significance

Injuries or disorders of the navicular bone, such as navicular stress fracture or Kohler disease, can cause significant pain and mobility issues. These conditions often require medical intervention, including physical therapy, medication, or in severe cases, surgery.

See also

• Foot
• Human skeleton
• Tarsus (skeleton)

References

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  Foot bones - tarsus, metatarsus, and phalanges
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  Navicular bone fracture mark