The respiratory system is responsible for gas exchange, allowing oxygen intake and
carbon dioxide removal. It includes structures such as the nasal cavity, lungs, and alveoli.
Diagram of the Respiratory System:
Major Components of the Respiratory System:
1. Nasal Cavity - Filters, warms, and moistens the air.
2. Pharynx - Passageway for air and food.
3. Larynx - Contains vocal cords for sound production.
4. Trachea - Directs air to the lungs.
5. Bronchi - Branches from the trachea leading into the lungs.
6. Lungs - Primary organ for gas exchange.
7. Alveoli - Tiny sacs where oxygen and carbon dioxide exchange occurs.
Types of Respiration:
1. External Respiration - Gas exchange between the lungs and the bloodstream.
2. Internal Respiration - Gas exchange between the blood and body tissues.
3. Cellular Respiration - Cells generate energy (ATP) using oxygen.