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Sesamoid bone information


Sesamoid bone
Sesamoid bones at the distal end of the first metatarsal bone of the foot.
Details
Identifiers
Latin
  • os sesamoideum
  • pl. ossa sesamoidea
MeSHD012716
TA98A02.0.00.016
TA2374
FMA32672
Anatomical terms of bone
[edit on Wikidata]

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]

  1. ^ OED 2nd edition, 1989 as /sεsəmɔɪd/
  2. ^ Entry "sesamoid" in Merriam-Webster Online Dictionary.
  3. ^ a b "Sesamoid Injuries". aofas.org. Archived from the original on 2016-08-19. Retrieved 2014-12-06.
  4. ^ Saladin, Kenneth S. (2012). Anatomy and Physiology (6th ed.). New York: McGraw Hill. p. 234. ISBN 978-0-07-337825-1.

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soft cartilage which begins to ossify into bone at about four years of age. The patella is a sesamoid bone roughly triangular in shape, with the apex...

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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...

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inflammation of the sesamoid bones. Sesamoiditis occurs on the bottom of the foot, just behind the big toe. There are normally two sesamoid bones on each foot;...

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number of small sesamoid bones, commonly found in tendons. The patella or kneecap on each side is an example of a larger sesamoid bone. The patellae are...

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lateral sides of the base of the first phalanx of the great toe, a sesamoid bone being present in each tendon at its insertion. The medial portion is...

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medial side of the bone. Its function is to spread the toes. Sesamoid bones at the distal end of the first metatarsal. First metatarsal bone. Deep dissection...

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