Cuneonavicular joint

Cuneonavicular joint is a type of joint found in the human foot. It is formed by the articulation of the cuneiform bones and the navicular bone.

Etymology

The term "cuneonavicular" is derived from the Latin words "cuneus" meaning wedge and "navicularis" meaning boat-shaped. This is in reference to the shapes of the cuneiform and navicular bones that form the joint.

Anatomy

The cuneonavicular joint is a synovial joint, which means it is filled with synovial fluid that helps in reducing friction and providing cushioning during movement. It is located in the midfoot region, between the three cuneiform bones (medial, intermediate, and lateral) and the navicular bone.

The joint is surrounded by a fibrous joint capsule that is lined with a synovial membrane. The joint capsule is strengthened by the dorsal cuneonavicular ligament, plantar cuneonavicular ligament, and the interosseous cuneonavicular ligament.

Function

The cuneonavicular joint plays a crucial role in foot mobility, particularly in movements such as inversion and eversion. It also contributes to the stability of the foot and helps in distributing body weight during standing and walking.

Related Terms

• Cuneiform bones
• Navicular bone
• Synovial joint
• Joint capsule
• Dorsal cuneonavicular ligament
• Plantar cuneonavicular ligament
• Interosseous cuneonavicular ligament

See Also

• Foot anatomy
• Joints of the foot
• Synovial joints

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