Its proximal end is large and convex, but is not drawn out into an olecranon process.
The olecranon fossa is deep and there is no ent-epicondylar foramen.
At the same time, the olecranon is curved strongly downwards.
The ulna presents at its superior extremity a posterior process, the olecranon, which forms the point of the elbow.
In the dog, the olecranon fossa communicates with the coronoid by an opening.
This latter is larger than the radius, but its olecranon process is very slightly developed.
The olecranon process of the ulna forms merely a posterior guide or guard to the joint, but transmits no weight.
I saw several cases of pure perforation of the olecranon without any signs of implication of the elbow-joint.
This is frequently the case in fractures of the patella, the olecranon, and the narrow part of the neck of the femur.
A linear incision over ulnar nerve at inner side of olecranon.
olecranon o·lec·ra·non (ō-lěk'rə-nŏn')
The large process on the upper end of the ulna that projects behind the elbow joint and forms the point of the elbow.