Nerves of the Shoulder and Elbow The shoulder is made up of four sections: axillary, superior brachial, inferior brachial and ulnar. The motor department of all four sections is represented by the biceps brachii, biceps and triceps muscles of the forearm, and the anterior and posterior parts of the deltoid muscle. This makes it possible to raise the arm to a horizontal position. Also in the submandibular region there is a stony process, through which you can reach the collarbone with your chin. The elbow has no muscles, so it is designed to rotate. The radial cutaneous and arterial nerves pass through the upper part of the joint, which carry out movement in the shoulder joint. In the elbow joint, along the outer surface of the radius, there is a tendon canal, in which a common nerve trunk passes, which is responsible for the sensitivity of the elbow and its inner surface. From here the common cutaneous-dorsal nerve comes to the nerve - from the skin and the sweat glands located on it.