The sternum is located in the front of the chest cavity, and the bone that touches the middle of the anterior chest is the sternum. The sternum is composed of two parts, the upper part is the sternal body, while the lower part is the sternal stalk. There are three more simple ways to locate the sternum: 1. Touch your stomach, then touch upward to touch the touch, and touch the pointed bone is the lowermost part of the sternal stalk. The sternum is the key part connecting the ribs on both sides, and its main function is to provide protection for the important organs in the back, such as the heart, mediastinum, etc. The sternum may also be deformed, for example, a chicken chest is the result of excessive convexity of the sternum. 2, touch their throat knot, and then touch down, the first bone encountered is the uppermost sternum, women can use the esophagus as a reference. 3, touch through the clavicle, the clavicle is a more obvious positioning mark, along one side of the clavicle to the inside, the bone at the edge of the clavicle is the sternum, the sternum and clavicle constitute the sternoclavicular joint The sternum and clavicle form the sternoclavicular joint.