Olecranon process: The olecranon articulates with

The olecranon articulates with the humerus via the olecranon fossa on the humerus, which is situated over the posterior surface of the humerus. It is continuous with the coronoid process of the ulna via the trochlear or semilunar notch anteriorly. It bears the olecranon, trochlear notch, coronoid process, radial notch, sublime tubercle and ulnar tuberosity. The olecranon is a prominent, proximal projection from the posterior aspect of the proximal ulna and serves as the point of insertion for the triceps brachii muscle. Important landmarks of the proximal ulna are the olecranon, coronoid process, trochlear notch, radial notch and the tuberosity of ulna: Olecranon – a large projection of bone that extends proximally, forming part of trochlear notch. It can be palpated as the ‘tip’ of the elbow. The triceps brachii muscle attaches to its superior surface. Other articles where olecranon is discussed: ulna: …this notch is called the olecranon process; it articulates behind the humerus in the olecranon fossa and may be felt as the point of the elbow. The projection that forms the lower border of the trochlear notch, the coronoid process, enters the coronoid fossa of the humerus when the elbow…