What is the anatomy of the arm?

The anatomy of the arm consists only of three bones, but a series of muscles, tendons and nerves. At the end of the forearms there are metacarpal bones that form the wrist and attach the hand to the arm. The arms are connected to the shoulder on the shoulder and there are several long bones and large muscles that allow the arm to move and bend.

Humerus is a long, strong bone that leads from the shoulder to the elbow. The head of the bone sits in the cavity on the shoulder blade and creates a connection between the arm and the shoulder. At the other end of the humerus is the trochlea, which forms the elbow joint, where it connects to the bones that produce forearms. The radius and ulna are shaped a bit like a long harbor; Unla is a long bone with almost no curve. Running along this bone is a radius that connects to the ulna at both ends and has a clear curvature, which helps to form the shape of the anatomy of the arm.

The muscular anatomy of the arm is more complicated; The arms rotate the muscles that run between the upper part of the arm and the shoulder. Teres Major and Teres Minor are responsible for a large part of the side and side movement of the arm. Elbow is aboutMovement, which is tightened and released in brachialis, which is connected to the main bones of the arm through the elbow joint. Inside the elbow is a muscle called anconeus, which allows to straighten the arms. The main muscles responsible for heavy lifting are biceps; These easily visible muscles connect to the humerus.

various arteries supply blood and oxygen to different parts of the anatomy of the arm. Brachial artery runs down the humerus and adds forearm and hand with blood. Smaller arteries such as rear perimeter humeral and subcapular supply blood into the muscles of the upper and forearm.

Hands and fingers rely on Strosensation and Touch to make it possible to function properly. Running throughout the anatomy of the arm is the nerves that constantly broadcast messages to the brain. The media line and the rear cord are responsible for the transmission of information received by the fingers, while the palms rely on various nerves called lateral cord and median. From pectoral, brachial and musclocut nerves, they receive information from the skin of the upper and forearms.