Inner Body says that the three parts of the deltoid muscle are the anterior fibers, lateral fibers and posterior fibers. Each band of fibers originates from a separate location. More » Science Human Anatomy Muscles

The deltoid muscle is innervated by the axillary nerve. The deltoid is a triangular muscle located at the uppermost part of the arm and gives the shoulder its rounded contour. The axillary nerve extends from the brachial... More »

The deltoid is opposed by the pectoralis major and the latissimus dorsi when the arm is moved away from the body to the side. The deltoid group functions to stabilize the shoulder during rotation, preventing dislocation ... More »

The deltoid muscle, located on the outside of the shoulder, helps rotate the upper arm and extend the arm at the shoulder. The deltoid has three different sets of fibers that help perform specific tasks. More »

The major contour muscles in the human body are the trapezius muscle, infraspinatus muscle, deltoid muscle, teres major, teres minir, triceps, latissimus, Sartorius, Gluteous medius and major, quadriceps, biceps femoris,... More »

According to MedlinePlus, deltoid muscle atrophy is a condition in which the deltoid muscles of the shoulder have become wasted or diminished, resulting in loss of strength or movement. Causes of deltoid muscle atrophy i... More »

The whole body is involved in a baseball swing, with legs, forearms, wrists, abdominal muscles, hips and lower back muscles playing the most important roles, according to Bob Alejo for Hitting coaches c... More »