Biceps groove Medial

Biceps Medial Groove: Anatomical Description and Functions

The biceps medialis groove, also known as sulcus bicipitalis medialis, pna, bna or sulcus bicipitalis ulnaris, jna, is an important anatomical structure of the shoulder joint. This groove is located on the inside of the upper arm and serves as the attachment point for the biceps muscle of the upper limb.

Anatomically, the medial biceps groove looks like a deep canal with convex edges that begins at the middle part of the upper edge of the cubital fossa and is directed upward to the shoulder. This groove divides the tubercle on the front of the shoulder into two parts: anterior and posterior. The anterior part of the tubercle serves as the attachment point for the short head of the biceps muscle, and the posterior part for the long head.

One of the main functions of the biceps muscle is to flex the forearm at the elbow joint and rotate the forearm at the shoulder joint. Due to its anatomical position, the biceps medial groove plays an important role in holding the muscle in place during movement.

In addition, the medial biceps groove can be the site of various pathologies. For example, with frequent and intense stress on the muscle, inflammation of the mucous membrane of the groove may develop, which will lead to pain and limitation of movements. It is also possible to develop various types of degenerative diseases associated with wear and tear of the articular surfaces.

In conclusion, the biceps groove medialis is an important anatomical structure of the shoulder joint that plays a key role in the function of the biceps muscle of the upper extremity. However, due to its anatomical position, the groove can become the site of various pathologies that can lead to pain and limitation of movement.



The biceps groove is a depression in the upper body that forms between the biceps muscles. It plays an important role in the functioning of the human arm and shoulder. In this article we will take a closer look at the biceps medialis groove.

The biceps medialis groove is a deep groove on the anterior surface of the shoulder that connects the biceps medialis muscle and the humerus. It opens medial to the biceps muscle towards the shoulder joint, and carries important anatomical elements.

The biceps muscle is one of the two main muscles working when bending the arm, and the medial biceps groove is the most important element of its design. It actively works in elbow supination, a process in which the radius rotates inward to open the palm during arm movement. The groove also connects the radius with the biceps lateral and long muscles of the forearm, allowing the arm