Costal Branch Lateral

The costal lateral branch (costolateral branch, Latin ramus costalis lateralis) is a branch of the internal thoracic artery that supplies blood to the skin and muscles of the anterior chest wall. It arises from the internal mammary artery and passes laterally to the rib.

The costolateral branch can be easily felt on the side of the chest, between the ribs and intercostal muscles. It has a triangular shape and can be of varying lengths and thicknesses, depending on the individual anatomy.

This branch plays an important role in supplying blood to the upper torso, including the rib cage, collarbone, scapula and shoulder. It supplies blood to the skin, muscles and ligaments of the anterior chest wall, as well as the muscles of the shoulder and forearm. In addition, it is involved in the blood supply to the mammary gland in women.

The presence of this branch can be useful in diagnosing diseases and injuries of the chest and shoulder. For example, if a patient has pain in the shoulder or chest, the doctor may suspect damage to this branch. In such cases, diagnosis may require vascular ultrasound or angiography.

Overall, the costolateral rami are important anatomical structures that play an important role in the blood flow of the upper torso. They can be useful in diagnosing injuries and diseases related to the chest and shoulder.



The costal branch of the lateral muscle (lat. rami costales laterales) is a type of branches that are a continuation of the main respiratory artery and carry supply to the second, third and fourth costal arch (passing to the outer surface of the chest) superficial intercostal nerves and muscles.

The costal (lateral) branch of the main trunk of the posterior interclavicular artery is also known as the costal branches, branches of the interdigestive artery, or intercostal artery. It passes through the interaxial suture of the spine, emerges from the serrated cervical nerve, and joins the main trunk of the posterior interclavicular artery before it begins to move forward toward the floors.