Lungs alveolus

1. Oxygen is inhaled and exhaled through the respiratory system. Through the mouth/nose, the air travels through the trachea to the lungs. The diaphragm is a big muscle under your lungs. It pushes downward when you inhale, which enlarges the cavity in the chest and causes the lungs to expand. This causes air to flow into them. When the diaphragm relaxes, air flows out and you exhale. This process is known as the Exchange of Gases. 7. How Does Air Enter and Exit the Lungs?

2. The alveoli are surrounded by a lot of tiny blood vessels. The oxygen in the alveoli are swapped with carbon dioxide in the blood via these vessels. This blood is taken to the heart and is pumped around the body to supply oxygen to the rest of the body. The carbon dioxide that was exchanged in the alveoli is then breathed out. Ekileti 8. Describe the process that happens inside of the alveolus