Mammal Gas Exchange
Oxygen is inhaled through the nose and or mouth and causes the diaphragm to contract and the lungs to expand. The air is filtered through mucus glands and cilia. Then it passes through the larynx followed by the trachea for another filtering. Then it goes to the bronchi and in the bronchi, the air spreads to the bronchioles. At the same time carbon dioxide and other waste diffuse into from the capillaries
Oxygen is inhaled through the nose and or mouth and causes the diaphragm to contract and the lungs to expand. The air is filtered through mucus glands and cilia. Then it passes through the larynx followed by the trachea for another filtering. Then it goes to the bronchi and in the bronchi, the air spreads to the bronchioles. At the same time carbon dioxide and other waste diffuse into from the capillaries