The manubrium is the broad, upper part of the sternum, or breastbone, located in the center of the chest. It connects to the first pair of ribs and the clavicles, providing structural support to the ribcage. The manubrium plays a crucial role in protecting vital organs, such as the heart and lungs. Anatomically, the manubrium is shaped like a handle and is approximately 5 centimeters long. It articulates with the body of the sternum at the sternal angle, which is an important landmark for medical professionals. Understanding the manubrium's position helps in diagnosing various chest-related conditions.