Ulnar groove Posterior Medial

The posterior medial ulnar groove (sulcus cubitalis posterior medialis) is a groove located on the posterior surface of the olecranon process of the ulna. It is directed vertically downwards and limits the medial surface of the olecranon.

The ulnar nerve and ulnar artery pass along the posterior medial ulnar groove before entering the cubital canal. The groove serves as the attachment site for the medial collateral ligament of the elbow joint.

The posterior medial ulnar groove has important anatomical significance, as it contains structures that provide innervation and blood supply to the forearm and hand, and also participates in the formation of the elbow joint.



Ulnar groove Posterior Medial (sulcus cubitalis posterior medialis, or simply the medial groove of the elbow) is one of the three main grooves on the posterior surface of the ulna. It begins at the level of the distal end of the radius and runs medially along the lateral surface of the elbow joint.

The medial groove of the elbow serves an important function by providing space for the passage of muscles and tendons that are involved in the movement of the elbow joint and hand. It also serves as the attachment site for certain ligaments, such as the ulnar collateral ligament, which holds the ulna in its proper position relative to the radius.

The ulnar groove Posterior Medial is an important anatomical structure that plays an important role in the functioning of the elbow joint and can be damaged by injury or disease. Injuries to the medial groove of the elbow may cause pain, swelling, and limited range of motion in the elbow joint. Therefore, it is important to be aware of the existence of this groove and its functions in order to prevent possible health problems.