Lunate bone
Lunate Bone
The Lunate bone (pronounced: LOO-nate bone) is one of the eight small bones that make up the carpal bones in the human wrist.
Etymology
The term "lunate" comes from the Latin word "luna", meaning moon, due to the crescent shape of the bone.
Anatomy
The lunate bone is situated in the middle of the second row of carpal bones, between the scaphoid bone and the triquetral bone. It articulates with the radius in the forearm, and with the capitate and hamate bones in the hand.
Function
The lunate bone, along with the other carpal bones, allows for the complex movements of the wrist. It plays a crucial role in the flexion, extension, abduction and adduction of the wrist.
Related Terms
- Carpal bones: The group of eight small bones that make up the wrist.
- Scaphoid bone: The bone situated laterally to the lunate bone in the proximal row of carpal bones.
- Triquetral bone: The bone situated medially to the lunate bone in the proximal row of carpal bones.
- Radius: The larger of the two bones in the forearm, with which the lunate bone articulates.
- Capitate bone: The largest of the carpal bones, situated in the distal row of carpal bones.
- Hamate bone: The bone situated medially to the capitate bone in the distal row of carpal bones.
External links
- Medical encyclopedia article on Lunate bone
- Wikipedia's article - Lunate bone
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