5/21/2023 0 Comments Back 4 blood supply linesThe artery is in between the median nerve and the tendon of the biceps muscle in the cubital fossa. It gives branches to the muscles of the anterior compartment. It is accompanied by venae comitantes (accompanying veins). It travels in a plane between the biceps and triceps muscles, the same as the median nerve and basilic vein. The brachial artery continues to the cubital fossa in the anterior compartment of the arm. This branching occurs just below the lower border of teres major. The brachial artery gives off an unimportant branch, the deep artery of arm. The point at which the axillary becomes the brachial is distal to the lower border of teres major. This artery is a continuation of the axillary artery. The main artery in the arm is the brachial artery. This means that condylar fractures can cause lesion to this nerve. ![]() At the elbow, this nerve travels posterior to the medial epicondyle of the humerus. This nerve passes in the same plane as the median nerve, between the biceps and triceps muscles. The ulnar nerve, origin C8-T1, is a continuation of the medial cord of the brachial plexus.At the cubital fossa, this nerve is deep to the pronator teres muscle and is the most medial structure in the fossa. This nerve continues in the arm, travelling in a plane between the biceps and triceps muscles. The median nerve, nerve origin C5-T1, which is a branch of the lateral and medial cords of the brachial plexus.Other nerves passing through give no supply to the arm. This fact is very important clinically as a fracture of the shaft of the bone here can cause lesions or even transections in the nerve. Here it travels with the deep artery of the arm, which sits in the radial groove of the humerus. ![]() This nerve enters the lower triangular space (an imaginary space bounded by, amongst others, the shaft of the humerus and the triceps brachii) of the arm and lies deep to the triceps brachii. The radial nerve, which is from the fifth cervical spinal nerve to the first thoracic spinal nerve, originates as the continuation of the posterior cord of the brachial plexus. It terminates as the anterior cutaneous nerve of the forearm. It pierces the coracobrachialis muscle and gives off branches to the muscle, as well as to brachialis and biceps brachii. It originates from the lateral cord of the brachial plexus of nerves. The musculocutaneous nerve, from C5, C6, C7, is the main supplier of muscles of the anterior compartment. ![]() Cutaneous innervation of the right upper extremity.
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