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Muscle Groups
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Arm Muscles
The main shoulder muscles include: the trapezius and the serratus anterior. The main muscles enabling movement of the arm are: the pectoralis major, the latissimus dorsi, the deltoids and the four rotator cuff muscles.
The main arm muscles are those that enable movement of the shoulder and arm. The main shoulder muscles include:
The serratus anterior which attaches the ribs to the shoulder blade.
The main muscles enabling movement of the arm are:
The pectoralis major which attaches the collar bone to the humerus - the bone of the upper arm.
The latissimus dorsi, also known as the 'lats' which wrap around the ribs from front to back.
The deltoids - comprising anterior, lateral and posterior and connect the shoulder blade to the humerus.
The four rotator cuff muscles that keep the arm bone in the shoulder socket and allow a wide range of movements.
The muscles that move the forearm are found along the humerus, and include:
The triceps - the three-headed muscles that shape the back of the upper arm. These are the muscles that need to be worked to prevent the onset of 'bingo wings', the flabby skin that hangs under the arm when it is raised. This is a problem, especially in women as they grow older. Developing the triceps will keep the upper arms looking firm and well-toned.
The biceps - the muscles in the front of your arm that give the bump when you clench your fist.
The brachialis muscle which covers the front of the elbow and allows the elbow to bend.
The brachioradialis found on the outer side of the upper arm which allows it to face up or down.
The muscles responsible for the movements of the wrist, hand, and fingers are located along the forearm.
