most probable differential is a infectious mononucleosus (imn). confirm by imn monospot test.
the biceps
sternocleidomastoid
The triceps is the muscle at the back of your upper arm. It works to straighten your arm at the elbow.Yes, the tricep is located on the back of your arm in between your elbow and shoulder, closer to your shoulder though.
There are a number of reasons why you might have pain between elbow and shoulder. This could be caused by a pulled muscle.
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 .
To distinguish between nerve and muscle disorders, to identify specific muscular disorders such as muscular dystrophy , to probe muscle metabolic activities, and to detect muscle infections such as trichinosis and toxoplasmosis.
The Neck Muscle
There are many muscles between the shoulder joint and neck. Perhaps look up an online anatomy diagram to find exactly which one you are wanting to know.