What is the superior portion of the sternum called?

The superior portion of the sternum is referred to as the manubrium. This structure is the uppermost segment of the sternum and is key in anatomical relationships, as it serves as an attachment point for several important structures. The manubrium articulates with the clavicles and the first pair of ribs, which is essential for providing stability to the shoulder girdle and support to the ribcage. Understanding the location and function of the manubrium is important for medical professionals, as it plays a role in assessing thoracic injuries or conditions.

The body is the central portion of the sternum, which follows the manubrium, while the xiphoid process is the small, cartilaginous extension found at the inferior end. The sternal angle is an anatomical landmark formed at the junction between the manubrium and the body of the sternum, but it is not considered a part of the sternum itself. Each of these components contributes to the overall structure and function of the sternum, but the manubrium specifically denotes the superior section. Understanding these distinctions is critical for anyone studying human anatomy or emergency care.