The muscles in your arms are bicep or tricep. Your Bicep muscle is the above part of your arm and your Tricep muscle is the under part of your arm. So tricep
Anatomically the term arm refers only to upper arm. And there is nothing like structure at its bottom.
The muscles below the axilla are a small part of the latissumus dorsi and the
serratus anterior.
There is not a single muscle that rotates the upper arm. The name of the muscle that contributes in rotation of the upper arm is deltoid muscle.
The triceps brachii is a muscle with three attachments.
Skeletal muscle is associated with the upper arm.
The brachialis is a muscle in the upper arm that flexes the elbow joint.
What are the tendon in your arm?
no
I think you are referring to the triceps. This is the muscle that attaches at the elbow and the shoulder. The one that you use when extending your arm. biceps; up triceps; under
Biceps or triceps
where you bored when you posted this question or have you pop you muscle in you left arm
Deltoid
which shoulder muscle allows you to adduct your arm
It depends. But, the triceps are 2/3 of your upper arm.