A sesamoid bone is a bone embedded within a tendon.
Sesamoid bones can be found on joints throughout the body, including:
In the knee — the patella (within the quadriceps tendon).
In the hand — two sesamoid bones are commonly found in the distal portions of the first metacarpal bone (within the tendons ofadductor pollicis and flexor pollicis brevis). There is also commonly a sesamoid bone in distal portions of the second metacarpal bone.
In the wrist - The pisiform of the wrist is a sesamoid bone (within the tendon of flexor carpi ulnaris).
In the foot - the first metatarsal bone usually has two sesamoid bones at its connection to the big toe (both within the tendon offlexor hallucis brevis). In some people, only a single sesamoid is found on the first MTP.
Esta definição inclui textos do site wikipedia – Wikipedia: enciclopédia libre (22 de julho de 2004). FL: Wikimedia Foundation, Inc. Recuperado no dia 10 de agosto de 2004, de http://www.wikipedia.org
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