Cyamella
Encyclopedia
The cyamella is a small sesamoid bone
embedded in the tendon
of the popliteus muscle
. It is a variant of normal anatomy. It is rarely seen in humans, but has been described more often in other primates and certain other animals.
Sesamoid bone
In anatomy, a sesamoid bone is a bone embedded within a tendon.Sesamoids are found in locations where a tendon passes over a joint, such as the hand, knee, and foot. Functionally, they act to protect the tendon and to increase its mechanical effect. The presence of the sesamoid bone holds the...
embedded in the tendon
Tendon
A tendon is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension. Tendons are similar to ligaments and fasciae as they are all made of collagen except that ligaments join one bone to another bone, and fasciae connect muscles to other...
of the popliteus muscle
Popliteus muscle
The popliteus muscle in the leg is used to unlock the knee during walking/running by laterally rotating the femur on the tibia during a closed chain movement ....
. It is a variant of normal anatomy. It is rarely seen in humans, but has been described more often in other primates and certain other animals.