brystregion
Brystregion, also called the chest region, is a term in human anatomy describing the anterior portion of the thorax that includes the chest wall and, in many contexts, the breast area. It extends superiorly to the base of the neck, laterally toward the midaxillary lines, inferiorly toward the upper abdomen near the diaphragm, and anteriorly over the sternum and costal cartilages, with the posterior boundary formed by the thoracic vertebrae.
The region comprises the thoracic wall—ribs, sternum, and intercostal muscles—and the overlying soft tissues, including the