What are the microscopic air sacs that exchange oxygen and carbon dioxide through the processes of inspiration and expiration?

A) larynx
B) trachea
C) alveoli
D) pharynx

Alveoli

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place, crucial for the respiratory process.

Inspiration

Inspiration refers to the process of being mentally stimulated to do or feel something, especially something creative or the intake of air into the lungs.

Expiration

The act of coming to an end or the cessation of validity, such as in the context of a deadline or a product's shelf life.