Tubercle of the Anterior Scalene Muscle [Tuberculum Musculi Scaleni Anterioris, Pna; Tuberculum scaleni (Lisfranci), Bna; Tuberculum Musculi Scaleni, Jna; Syn.: Scalene Tubercle, Lisfranc Bouguereau]

The tubercle of the anterior scalene muscle is a protrusion on the upper surface of the first rib, which is the attachment site of the muscle of the same name. It is located between the first and second ribs and is an important element of the anatomy of the upper limb.

The anterior scalene muscle is one of three muscles that form the scalene muscle. It is located on the front surface of the chest and is responsible for the movement of the shoulder and scapula. The tubercle is one of its important elements, as it ensures reliable attachment of the muscle to the first rib.

In addition, the tubercle of the anterior scalene muscle plays an important role in maintaining the stability of the shoulder joint. Injuries or illnesses associated with this area may cause pain and discomfort in the shoulder joint.

Thus, the tubercle of the anterior scalene muscle is an important anatomical structure that plays an important role in the functioning of the upper limb and maintaining its stability.