What is intertubercular groove?

The intertubercular groove, also known as the bicipital groove or sulcus, is a shallow groove located on the anterior aspect of the humerus bone. It runs along the length of the bone between the greater and lesser tubercles, which are bony prominences on the upper end of the humerus. The intertubercular groove serves as a pathway for the tendon of the long head of the biceps muscle, allowing it to move smoothly during shoulder and arm movements.

In addition to the biceps tendon, the intertubercular groove also contains the tendon of the pectoralis major muscle, as well as the lateral and medial pectoral nerves and blood vessels. Pathologies affecting the intertubercular groove, such as inflammation or impingement of the biceps tendon, can lead to pain and limited range of motion in the shoulder. In some cases, surgical intervention may be necessary to address these issues.

Overall, the intertubercular groove plays a crucial role in the normal function of the shoulder joint and is an important anatomical landmark for understanding the connections between the upper arm muscles and their associated tendons.