Question

explain the respiratory system, including the structures involved and the function of the system.

Explanation:

The respiratory system is responsible for gas - exchange. Structures include the nose, pharynx, larynx, trachea, bronchi, and lungs. The nose warms, filters, and humidifies air. The pharynx is a passageway for air and food. The larynx contains the vocal cords and prevents food from entering the trachea. The trachea conducts air to the bronchi. The bronchi branch into smaller bronchioles in the lungs. Alveoli in the lungs are the sites of gas - exchange, where oxygen enters the blood and carbon dioxide is expelled.

Answer:

The respiratory system's main function is gas - exchange, with key structures such as the nose, pharynx, larynx, trachea, bronchi, and lungs facilitating the process of taking in oxygen and expelling carbon dioxide.