SESAMOID BONE

SESAMOID BONE

Sesamiod bone are small rounded masses of bone located in some tendonsmat points where they are subjected to great pressure. They are variable in their occurance. These are as follows,

1. Two sesamoid bone are always found on the palmar surface of the head of the first metacarpel bone

2. The pisiform is often regarded as a sesamoid bone lying within the tendon of the flexor carpl ulnaris.

3.Sometimes sesamoid bone may be found at other metacarpophalangeal joints.                          

    4.One sesamoid bone is found on the ulnar side of the capsule of the metacarpophalangeal joint of the little finger ,in about 75% of subjects.

5.one sesamoid bone is found in the capsule of the interphlangeal joint of the thumb, in 75% of subjeccts.