There is also a special null type, the type of the expression null, which has no name. Because the null type has no name, it is impossible to declare a variable of the null type or to cast to the null type. The null reference is the only possible value of an expression of null type.
The military barbell press mainly works the shoulder, or deltoid, muscles. The anterior deltoid, the front head of the shoulder muscle, does much of the work. The side, or lateral, deltoid and the rear, or posterior, deltoid are also involved in the movement, although to a lesser degree than the anterior deltoid.
The deltoid muscle is involved in rotating the shoulder. The deltoid muscle is responsible for the shoulder's rounded shape. The military press strengthens the deltoids, or shoulders muscles, and other muscles of the upper body.Deltoid muscles contain three parts: posterior, anterior and lateral.he deltoid muscle is responsible for the shoulder's rounded shape. The military press strengthens the deltoids, or shoulders muscles, and other muscles of the upper body.