The region that separates the lungs and holds the heart, esophagus, trachea, and great vessels, is referred to as the what?
Explanation
Answer: B - The region that separates the lungs and holds the heart, esophagus, trachea, and great vessels is referred to as the mediastinum. The visceral pleura is the sac that holds the lungs, and the parietal pleura is a continuation of the visceral pleura, which lines the diaphragm and thoracic cavity. The diaphragm is a muscle that aids in breathing and divides the thoracic cavity from the abdominal cavity.
