What structure passes through the inter tubercular groove on the humerus?

The structure that passes through the intertubercular groove of the humerus is the long head of the biceps brachii tendon. This groove, located between the greater and lesser tubercles of the humerus, serves as a pathway for the tendon as it travels from the shoulder joint to its attachment point on the radius. Additionally, the groove is surrounded by the synovial sheath, which provides lubrication to the tendon during movement.