THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Overview. The diaphragm is a thin dome-shaped muscle which separates the thoracic cavity (lungs and heart) from the abdominal cavity (intestines, stomach, liver, etc.). It is involved in respiration, drawing downward in the chest on inhalation, and pushing upward in exhalation.

Detailed explanation-2: -The diaphragm has a dome-like structure with the peripheral segment attached to the chest wall and abdominal cavity.

Detailed explanation-3: -Your diaphragm is what separates your thoracic cavity from your abdominal cavity. Several blood vessels, nerves and tissues pass through your diaphragm as they travel between your chest and belly. These include your aorta, esophagus and vagus nerve. Front boundary: The front boundary is your sternum (breastbone).