Either the sternocleidomastoid or the trapezius.... but because the sternocleidomastoid is not technically on the shoulders, nor the trapezius a "strap" I am a little confused by this question.... But I think the sternocleidomastoid is the best answer for this question aside from the reference to descent towards the shoulder. Hope this helps, a little ambiguous, I know.
Yes, it is. The external jugular passes over (superficially) to the sternocleidomastoid.
Infraspinatus.
Shoulder external rotation
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.