THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The diaphragm is a thin dome-shaped muscle which separates the thoracic cavity (lungs and heart) from the abdominal cavity (intestines, stomach, liver, etc.).

Detailed explanation-2: -The diaphragm is a parachute-shaped fibrous muscle that runs between the chest and abdomen, separating these two large cavities.

Detailed explanation-3: -The diaphragm is the muscular sheet that separates the abdomen from the chest cavity.. The diaphragm is a thin sheet of muscle that sits at the base of the chest and separates the abdomen from the chest. It contracts and flattens when you inhale. This creates a vacuum effect that pulls air into the lungs.