radial tuberosity
Muscles are attaches to tendons, which in turn are attached to bones. So if you wanted to bend your arm, the biceps pulls on the tendon which is attached to the Radius and Ulna.
The thumb extensors are examples of muscles that attach to the ulna bone. The ulna bone is one of the two long bones in the forearm and can also be called the elbow bone.
The biceps attach to the radius bone (near your elbow) on a small bump called the radial tuberosity, and the the humerus(near your shoulder). Hope that helps!
The muscles that are used to perform a snapshot are the quadriceps and trapezius. Other muscles that are used are external/internal obliques and the pectoralis major.
So it can supinate
The biceps - any muscle attached to the skeleton.
The radius and ulna, the forearm bones, provide rigid support for the muscles in the forearm, and are manipulated by the muscles in the upper arm, primarily the biceps and triceps. The function of the radius bone is to allow the biceps muscle to attach. Other than that, it simply keeps your forearm straight. The ulna bone has the exact functions except it attaches several different muscles.
Skeletal muscles have an 'origin' which is where the muscle starts at and an insertion. For example, the biceps origin is at the shoulder. It's insertion point is the tendon where it attaches to the radius and ulna. There are also smooth muscles that line the bodies organs and blood vessels. There is the heart muscle made of cardiac muscle tissue.
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There are several, the main one being the biceps brachii.
The biceps and triceps muscles are examples of skeletal or striated muscle.
The triceps muscles extend (straighten) the arm, while the biceps muscles flex (bend) it at the elbow joint.