"흉골의 각" refers to the angle formed at the junction of the sternum and the costal cartilages of the ribs. This anatomical feature is important for understanding the structure of the chest and plays a role in respiratory mechanics. The angle is typically located at the level of the second rib and is clinically significant in various medical assessments. It can be palpated during physical examinations and is used as a reference point for locating other structures in the thoracic cavity, such as the heart and lungs.