The biceps muscle is in the front of your upper arm. It has two tendons that attach it to the shoulder blade bone. The long head attaches to the top of the shoulder socket (glenoid). The short head attaches to a bump on the shoulder blade called the coracoid process.

What is the muscle between your bicep and shoulder?

The brachialis muscle is deep to the biceps brachii and both its origin and its insertion are more distal to the shoulder than its equivalents on the biceps brachii. Like the biceps brachii, the origin of the brachialis is on the humerus bone and it inserts on the radius bone.

How long does bicep tendonitis take to heal?

Proximal biceps tendonitis usually heals well in 6 weeks to a few months and doesn't cause any long-term problems. It's important to rest, stretch, and rehabilitate the arm and shoulder long enough to let it heal fully. A slow return to activities and sports can help prevent the tendonitis from coming back.