Olecranon fossa
![](/Images/godic/202501/30/HumerusBack4440.png")
![](/Images/godic/202501/30/Gray208-trochlea4441.png")
The olecranon fossa is a deep triangular depression on the posterior side of the humerus, superior to the trochlea, in which the summit of the olecranon is received during extension of the forearm.
Olecranon fossa
英语百科
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