Substernal Angle

The substernal angle (angulus infrasternalis, pna, bna; angulus arcuum costarum, jna) is the angle formed by the articulation of the lower edges of the sternum with the costal arches. It is located in the lower part of the sternum at the level of the IV-V ribs and has a blunt apex directed anteriorly and downward.

The substernal angle is one of the landmarks when describing the topography of the thoracic cavity organs. It divides the sternum into the body (corpus sterni), located above the angle, and the manubrium sterni (manubrium sterni), located below the angle. Clinically, the substernal angle is important during palpation and percussion of the mediastinal organs, as well as when performing some surgical procedures in this area.

Substernal angles. Characteristics and norm. *The sternal angles in anatomy are the medial angles formed between the spine and the anterior border of the sternum.* The substernal triangle is formed at the point where the sternoclavicular joint connects to the costal region, and around this point are important anatomical structures such as the diaphragm and the heart. vascular vessels. In many patients, especially those who suffer from injuries to the chest or stomach, these areas are susceptible to damage and hemorrhage. Knowing the anatomy and possible points of injury can help avoid accidents and facilitate successful treatment. In this context we will look at the substernal joints.

Anatomy of the Breast The sternum is the cartilage that is adjacent to the spine