Sesamoid bone

[sraj]

https://en.wikipedia.org/wiki/Sesamoid_bone

In anatomy, a sesamoid bone (/ˈsɛsəmɔɪd/)^[1][2] is a bone embedded within a tendon or a muscle.^[3] Its name is derived from the Greek word for 'sesame seed', indicating the small size of most sesamoids. Often, these bones form in response to strain,^[4] or can be present as a normal variant. The patella is the largest sesamoid bone in the body. Sesamoids act like pulleys, providing a smooth surface for tendons to slide over, increasing the tendon's ability to transmit muscular forces.^[3].

Bone classification

https://www.youtube.com/watch?v=CEWpyIF2O5U