which one? there are more than ten muscles that the shoulder uses. assuming you're talking about the big one that contracts when you raise your arm to the side, that's your deltoid. the muscle that is important in shoulder adduction
There are multiple shoulder muscles. They're called the deltoid muscles and consist of anterior which is in the front, lateral which is on the side and posterior which goes behind. All three enclose the shoulder joint.
The shoulder muscle is called the Deltoids, and can be pulled and strained very easily.
The deltoid is a three-headed muscle that caps the shoulder. The three heads are called the anterior, posterior, and the lateral.
The shoulder itself is the Deltoids, there is also the muscle above the collar bone called the Trapezius Muscle
Deltoid
The deltoid muscle is located around the shoulder at the top. There is a deltoid muscle that is located on each shoulder.
which shoulder muscle allows you to adduct your arm
the shoulder muscle extends the arm
The shoulder muscle that is considered the strongest supinator is the biceps brachii.
The Deltoid muscle .
The Neck Muscle
The deltoid muscle is the big muscle on the shoulder. It has three parts; the front or anterior, middle and back or posterior. It involves the shoulder joint.
Trapezius Muscle!
No, it is the shoulder muscle.
in behind your shoulder
below your shoulder
Triceps Muscle