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What is the Triquetrum Bone?

Published in Human Anatomy 1 min read

The triquetrum is a small, pyramidal-shaped bone located in your wrist.

Anatomy of the Triquetrum

The triquetrum, meaning "three-cornered" in Latin, is one of eight carpal bones forming the wrist joint. Its location is on the medial (inner) side of your wrist. Its unique shape contributes to the complex mechanics of wrist movement.

  • Shape and Size: As its name suggests, it's roughly triangular or pyramidal. It's relatively small compared to other carpal bones.
  • Location: Situated on the medial side of the wrist, alongside other carpal bones.
  • Articulations: The triquetrum articulates (forms a joint) with several other bones, including the lunate, pisiform, and hamate. These articulations allow for a wide range of wrist motion.

Clinical Significance

While relatively small, the triquetrum's position and function make it susceptible to injury, particularly fractures and dislocations, often resulting from falls on an outstretched hand. Understanding its anatomy is crucial for accurate diagnosis and treatment of wrist injuries.