Sesamoid Bone

The sesamoid bone, or sesamoid bone, is a bone that is located within the tendon and usually rests on the surface of another bone, giving additional support and stability to the joints. It can be located either above or below the surface of another bone, and its function is to provide additional stability and protection to the joint.

Sesamoid bones are found in various parts of the body, including the knee, wrist, and elbow. The best known example of a sesamoid bone is the patella, which is located in the knee and is an oval bone that lies on the surface of the femur. Another example is the pisiform bone, which is found in the wrist and is also a sesamoid bone.

The functions of the sesamoid bones include supporting and stabilizing joints and protecting them from injury and damage. They may also play a role in controlling movement and distributing force in joints.

The sesamoid bones are oval in shape and located in the thickness of the tendons. They usually lie on the surface of other bones, but can be either above or below that surface.

One of the most famous examples of a sesamoid bone is the patella or kneecap, which is located above the knee and is an oval bone. The patella plays an important role in supporting and stabilizing the knee joint and protecting it from injury.



The sesamus bone is an unusual bone formation that is often found in horses and dogs and may also be present in other animals. It consists of two main parts - a hook-shaped part and an oblong part. The hook-shaped part, which is usually found in the thickness of the tendons, protrudes outward from the main bone of the leg or arm. It does not have its own blood circulation and its nutrition is provided by the vascular network of the tendon to which it is attached. The main function of the bone is to increase stability and load-bearing force on the tendon into which it is inserted. If the sesamum bone is damaged or completely removed, it can lead to loss of stability in the joint and an increased risk of injury and pain.

In general terms, when the sesamus tendon is strong and stable, it reduces stress on the other ligaments and stabilizes the joint. When it weakens due to bone loss, the joints become less functional because they cannot successfully complete their task.