Navicular

A bone situated in the foot that plays a crucial role in the structure and function of the ankle.

The navicular is a small, boat-shaped bone located in the midfoot region. It sits between the talus and the cuneiform bones, contributing to the arch of the foot. Its unique shape and position make it an essential component in the mechanics of foot movement and stability.

Terminologia Anatomica

os naviculare

System

Skeletal system

Function

The primary function of the navicular bone is to support the arch of the foot and facilitate its flexibility and motion. By acting as a keystone, it helps absorb shock while walking and distributing weight evenly across the foot. The navicular also serves as an attachment point for several ligaments and tendons, playing a pivotal role in maintaining the integrity of the foot's structure during movement. Additionally, it aids in the complex biomechanics of the ankle and helps in transitioning the body from walking to running, making it integral not only to mobility but also to the body's overall balance and posture.

Location

Situated on the medial (inner) side of the foot, the navicular bone can be found at the proximal end of the arch, just in front of the ankle joint. It is located directly behind the cuneiform bones and in front of the talus, forming a crucial link in the midfoot area. The navicular bone's position allows it to effectively stabilize the junction between the hindfoot and midfoot while also shaping the arch that supports the body's weight during various activities.

Did You Know?

The navicular bone is one of the few bones in the body that can be easily felt just below the skin surface, particularly when the foot is flexed.
In some cases, people can develop a condition known as 'navicular syndrome,' which can affect sports performance.
The navicular bone has its own blood supply but is less vascular than many other bones, making it prone to avascular necrosis, a condition that can lead to bone death due to lack of blood flow.