Anatomy Of The Human Arm Muscles

Extending from the shoulder to the elbow the upper arm provides pulling and lifting strength. Often referred to as your biceps this muscle contains two heads that start at the front and back of your shoulder before joining together at your elbow.

Medical Illustration Of Human Arm Muscles Four Side Views Photographic Print

And sets of carpal and metacarpal bones in the hand and digits in the fingers.

Anatomy of the human arm muscles. Supraspinatus is a small muscle of the upper arm. The fascia merges with the periosteum outer bone layer of the humerus. The muscle that extends or straightens the arm is the triceps.

The end near your elbow flex the forearm bringing it toward your upper arm. Human muscle system the muscles of the human body that work the skeletal system that are under voluntary control and that are concerned with movement posture and balance. The bones of the human arm like those of other primates consist of one long bone the humerus in the arm proper.

The upper arm is located between the shoulder joint and elbow joint. It arises from the supraspinatus fossa to eventually inserts on the greater tubercle of the humerus. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a persons body weight.

The arm consists of several segments that together make it one of the most useful and complex tools of the human body. Two thinner bones the radius and ulna in the forearm. The muscles of the upper arm are responsible for the flexion and extension of the forearm at the elbow joint.

Each of these muscles is a discrete organ constructed of skeletal muscle tissue blood vessels tendons and nerves. Supraspinatus muscle attachments actions innervation. Broadly considered human musclelike the muscles of all vertebratesis often divided into striated muscle or skeletal muscle smooth muscle and cardiac muscle.

The muscular system is responsible for the movement of the human body. Its one of the four muscles that make up the rotator cuff. The muscles of the anterior compartment include.

The anterior and the posterior compartments of the arm. The arm is divided by a fascial layer known as lateral and medial intermuscular septa separating the muscles into two osteofascial compartments. Flexion of the forearm is achieved by a group of three muscles the brachialis biceps brachii and brachioradialis.

It contains four muscles three in the anterior compartment biceps brachii brachialis coracobrachialis and one in the posterior compartment triceps brachii. This hinged joint allows the arm to open up to 180 degrees at full extension.

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