The upper arm

General information The upper arm consists of an upper arm bone (humerus) and several joint connections to both the shoulder (shoulder joint) and the bones of the forearm (elbow joint). The upper arm also has numerous Muscles, Nerves Vessels The upper arm bone (humerus) The humerus is a long tubular bone, which is divided into … The upper arm

Nerves | The upper arm

Nerves On the upper arm some nerves run from the brachial plexus. The musculocutaneous nerve originates from the lateral part of the plexus and supplies the motor nerve. The radial nerve runs together with the brachial artery and wraps around the humerus. The radial nerve innervates the forearm and splits into different branches and then … Nerves | The upper arm

Vascularization of the arm

Arteries The oxygenated blood reaches the right side via the brachiocephalic trunk and the left side directly from the aortic arch into the right or left subclavian artery. The subclavian artery merges into the axillary artery, which runs between the lower edge of the collarbone and the anterior axillary fold. Smaller branches lead to the … Vascularization of the arm

Brachial plexus

Introduction The brachial plexus is a network of the anterior branches of the spinal nerves of vertebrae C5-Th1. This is another name for the lower four cervical vertebrae and the uppermost thoracic vertebra. This “arm plexus” belongs to the so-called peripheral nervous system, which lies outside the skull bone and the spinal canal and connects … Brachial plexus

What is a brachial plexus block/anaesthesia? | Brachial plexus

What is a brachial plexus block/anaesthesia? The brachial plexus block is a form of local anesthesia. It is used to temporarily switch off the sensations of the arms and parts of the shoulder. The ability to move the anesthetized areas voluntarily is also lost for the duration of the anesthesia. A brachial plexus block is … What is a brachial plexus block/anaesthesia? | Brachial plexus