The thoracic cavity is separated from the abdominal cavity by ___________.
The correct option is C diaphragm Lungs are pairs of large, spongy organs that are involved in exchange of gases between the blood and the air. They rest on a muscular sheet called the diaphragm. The main functions of the diaphragm are-
It internally separates the thoracic cavity from the abdominal cavity.
It regulates the volume of the thoracic cavity during inhalation and exhalation.