Name the muscle that subdivides ventral body cavity?

The diaphragm is the primary muscle that subdivides the ventral body cavity into the thoracic cavity and the abdominopelvic cavity. It is a dome-shaped muscular sheet that separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity, which houses the digestive organs and other abdominal viscera. The diaphragm plays a crucial role in respiration by contracting and relaxing to facilitate the movement of air during inhalation and exhalation.