Sure! Here’s a paragraph describing a model of the respiratory system:
The respiratory system model illustrates how air travels through the body to facilitate gas exchange. It typically includes key structures such as the nose, trachea, bronchi, lungs, and diaphragm. Air enters through the nose or mouth, passes down the trachea, and splits into the bronchi, which lead to each lung. Inside the lungs, the bronchi branch into smaller bronchioles, ending in tiny air sacs called alveoli where oxygen is absorbed into the blood and carbon dioxide is expelled. The diaphragm, a dome-shaped muscle beneath the lungs, plays a crucial role in breathing by contracting and relaxing to move air in and out. This model helps visualize the anatomy and function of each part in the respiratory process.