The elbow is the joint between the arm and the forearm

The elbow is the articulation between the arm and the forearm at the upper extremity of the primates (or anterior limb of the remaining tetrapod vertebrates).

It is a complex joint, in addition to being similar to that of primates, although it binds only three bones, the humerus to the ulna and to the radius. The attachment of the humerus to the ulna (or ulna) on the back and outside of the arm acts as a hinge; The connection to the radio, on the inner side, functions as a pivot, allowing the rotation of the forearm.

It is possible to feel the two condyles of the humerus, although the outer one is covered by the brachial muscle. In the middle posterior part of the elbow, the olecranon of the ulna can be felt, which limits the hyperextension of this joint, lying between the two condyles of the humerus. Between the olecranon and the medial condyle of the humerus there is a recess, the sulcus of the ulnar nerve, where the ulnar nerve is housed without any superficial protection, which gives the sensation of shock when percussed.
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