It is the floor of the thoracic cavity and the ceiling of the abdominal cavity. Many body organs are near the diaphragm. Your heart, lungs, and the upper part of your esophagus (food pipe ...

"Your thoracic cavity (chest cavity) is a space inside your thorax (chest) that contains your heart, lungs and other organs and tissues," according to ClevelandClinic.org. A thoracic contusion is ...