Which muscle holds the lungs in place?

The lungs are primarily held in place by the pleura, a double-layered membrane that surrounds them and attaches to the chest wall. While there isn't a single muscle that holds the lungs, the diaphragm plays a crucial role in respiration and helps maintain the position of the lungs by creating a pressure difference during inhalation and exhalation. Additionally, the intercostal muscles between the ribs assist in expanding and contracting the thoracic cavity, further supporting lung function.