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Sesamoid bones can be found on joints throughout the human body, including: In the knee—the patella (within the quadriceps tendon). This is the largest sesamoid bone. [4] In the hand—two sesamoid bones are commonly found in the distal portions of the first metacarpal bone (within the tendons of adductor pollicis and flexor pollicis brevis).
A sesamoid bone is a small, round bone that, as the name suggests, is shaped like a sesame seed. These bones form in tendons (the sheaths of tissue that connect bones to muscles) where a great deal of pressure is generated in a joint. The sesamoid bones protect tendons by helping them overcome compressive forces.
The sesamoid bones lie behind the bones of the fetlock, at the back of the joint, and help to keep the tendons and ligaments that run between them correctly functioning. Usually periostitis (new bone growth) occurs along with sesamoiditis, and the suspensory ligament may also be affected. Sesamoiditis results in inflammation, pain, and ...
The fabella is a small sesamoid bone found in some mammals embedded in the tendon of the lateral head of the gastrocnemius muscle behind the lateral condyle of the femur. It is an accessory bone, an anatomical variation present in 39% of humans. [1] [2] Rarely, there are two or three
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It is the last carpal bone to ossify. The pisiform bone is a small bone found in the proximal row of the wrist . It is situated where the ulna joins the wrist, within the tendon of the flexor carpi ulnaris muscle. [1]: 199, 205 It only has one side that acts as a joint, articulating with the triquetral bone. It is on a plane anterior to the ...
Epipteric bone; Foramen tympanicum; Ossified petrosphenoid ligament; Ossification anomalies of the atlas (C1) Craniopharyngeal canal; Canalis basilaris medianus; Fossa navicularis magna; Transverse basilar fissure (Saucer’s fissure) Arcus praebasiocipitalis; Stafne bone cavity; Arcuate foramen; Ossiculum terminale (of dens) Os odontoideum ...
In the hand - two sesamoid bones are located in distal portions of the first metacarpal bone. There is also commonly a sesamoid bone in distal portions of the second metacarpal bone. Machn 10:51, 26 August 2009 (UTC) See the reference to Gray's Anatomy at the bottom of the page.