Muscles of the Arm

The biceps brachii is fusiform and not greatly developed. Its tendon of origin is rounded and passes through the capsule of the shoulder joint. The tendon of insertion is bifid, ending on the radius and ulna.

The brachialis is well developed, and also ends on the radius and ulna.

The tensor fascias antibrachii resembles that of the horse.

The long head of the triceps is divided into two parts, except at its distal end, under which there is a synovial bursa. The external head is inserted into a crest on the outer surface of the olecranon by a thin tendon, under which there is a bursa. The internal head arises near the head of the humerus, beneath the coraco-brachialis.

There are two anconei.