The biceps is the muscle in the front part of your upper arm that you flex to bend and twist your arm. This muscle helps you twist your forearm outward. Strong, fibrous connective tissues, called tendons, attach the biceps muscle to the elbow and shoulder and afford your arm a wide range of movement.
The tendon that connects the lower part of the biceps to the elbow is the distal tendon. The tendons that connect the top of the biceps muscle to the shoulder are the long head and the short head of the biceps. The long head of the biceps travels in the biceps groove and into the shoulder joint. It is in the region of the groove to where the biceps attaches on the superior labrum typical injury is seen.
Injury can range from inflammation, fraying, partial tears to involvement with a SLAP tear.