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The arm is one of the body’s most complex and frequently used structures. We’ll go over the bones, joints, muscles, nerves, and blood vessels that make up the human arm.
Arm muscles. The arm muscles are a group of five muscles located in the region between the shoulder and elbow joints. They are divided into two distinct compartments of the arm. The anterior (flexor) compartment contains the biceps brachii, coracobrachialis and brachialis muscles.
The upper arm is located between the shoulder joint and elbow joint. It contains four muscles - three in the anterior compartment (biceps brachii, brachialis, coracobrachialis), and one in the posterior compartment (triceps brachii).
In human anatomy, the arm refers to the upper limb in common usage, although academically the term specifically means the upper arm[1][2] between the glenohumeral joint (shoulder joint) and the elbow joint.
The large bones of the arm include: Humerus: This bone runs down from the shoulder socket and joins the radius and ulna at the elbow. Radius: A forearm bone, it runs from the elbow to the thumb...
Arm muscle anatomy refers to the location and function of the muscles of the arms. These muscles attach to the shoulder blade, upper arm bone (humerus), forearm bones (radius and ulna), wrist, fingers, and thumbs. The arm muscles control movement at the elbow, forearm, wrist, and fingers.
Master arm and shoulder anatomy by studying this topic page at Kenhub. Click now to learn about the bones, muscles, arteries, and nerves of these regions!
Anatomically speaking, the arm is the part of the upper limb that is between the shoulder and the elbow joint. It has only one bone called the humerus, and an intricate network of muscles, vessels and nerves distributed around it.
The upper extremity or arm is a functional unit of the upper body. It consists of three sections, the upper arm, forearm, and hand. It extends from the shoulder joint to the fingers and contains 30 bones. It also consists of many nerves, blood vessels (arteries and veins), and muscles.
The anatomical areas found on the upper limb can serve as key landmarks to help us find important anatomical structures such as finding one of the superficial veins: The median cubital vein (a common site site for venepuncture) in the antecubital fossa of the arm.