What are the 6 parts of the respiratory system?

The six main parts of the respiratory system are the nasal cavity, pharynx, larynx, trachea, bronchi, and lungs. The nasal cavity warms and filters air, while the pharynx serves as a passageway for air and food. The larynx contains the vocal cords and directs air into the trachea, which branches into the bronchi leading to the lungs. The lungs are responsible for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled.