bone embedded in a tendon is called
In anatomy, a sesamoid bone (/ËsÉsÉmÉÉªd/) is a bone embedded within a tendon or a muscle.It is derived from the Latin word sesamum (sesame seed), due to the small size of most sesamoids. Often, these bones form in response to strain. In the wrist-The pisiform of the wrist is a sesamoid bone (within the tendon of flexor carpi ulnaris). 2  It is not present at birth and generally develops in children ages 9â12.