The sternum is also known as which part of the body?

The sternum, commonly referred to as the breastbone, is a flat bone located in the central part of the chest. It plays a critical role in protecting the organs of the thoracic cavity, including the heart and lungs, as well as serving as an attachment point for ribs and various muscles. This term, "breastbone," helps to convey its location and significance in the chest area, making it easy to understand its anatomical relevance.

The other terms listed do not correctly describe the sternum. The shoulder blade refers to the scapula, which is located in the upper back and plays a key role in shoulder movement. The pelvis is a bony structure forming the base of the spine, important for the attachment of the lower limbs and supporting the weight of the upper body. The collar bone, or clavicle, connects the arm to the body and is situated above the sternum. Understanding these differences further clarifies why "breastbone" is the accurate term for the sternum.