Cuneiform bones
Cuneiform Bones
The Cuneiform Bones (/kjuːˈniːɪfɔːrm/; from Latin cuneus meaning "wedge" and forma meaning "shape") are three bones in the human foot which are part of the tarsus. These bones are named for their wedge-like shape and are located between the navicular bone and the first, second and third metatarsal bones.
Anatomy
The three cuneiform bones are:
- Medial cuneiform bone - This is the largest of the cuneiform bones, and it is located at the medial side of the foot. It articulates with the navicular bone and the first metatarsal bone.
- Intermediate cuneiform bone - This bone is the smallest and is located in the center. It articulates with the navicular bone and the second metatarsal bone.
- Lateral cuneiform bone - This bone is located on the lateral side of the foot. It articulates with the navicular bone, the second and third metatarsal bones, and occasionally the cuboid bone.
Function
The cuneiform bones, along with other bones in the foot, help to support the body's weight and provide structure and stability to the foot. They also play a role in the complex movements of the foot, such as walking and running.
Related Terms
- Tarsus - The group of seven bones in the foot to which the cuneiform bones belong.
- Metatarsal bones - The five long bones in the foot which articulate with the cuneiform bones.
- Navicular bone - The bone in the foot which articulates with the cuneiform bones.
- Cuboid bone - The bone in the foot which occasionally articulates with the lateral cuneiform bone.
External links
- Medical encyclopedia article on Cuneiform bones
- Wikipedia's article - Cuneiform bones
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