Olecranon

Olecranon
Three ulnas; the olecranon is the protrusion at the top of each bone.
Details
Identifiers
Latinolecranon
MeSHD056740
TA98A02.4.06.002
TA21231
FMA39795
Anatomical terms of bone
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The olecranon (/oʊˈlɛkrənɒn/, from Greek olene 'elbow' and kranon 'head'), is a large, thick, curved bony process on the proximal, posterior end of the ulna. It forms the protruding part of the elbow and is opposite to the cubital fossa or elbow pit (trochlear notch). The olecranon serves as a lever for the extensor muscles that straighten the elbow joint.

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