The thoracic cage is the bony structure that encloses and protects the vital organs of the chest, such as the heart and lungs. There are several other synonyms to refer to the thoracic cage, including the thorax, rib cage, or chest wall. The thorax includes the bones of the chest, such as the ribs, sternum, and thoracic vertebrae. The rib cage specifically refers to the twelve pairs of ribs that form a protective cage around the vital organs. The term chest wall encompasses the bones, muscles, and other tissues that surround the chest cavity. No matter which term is used, it is important to understand that the thoracic cage is an essential part of the anatomy, providing structural support and protection to vital organs in the chest.