The function of the respiratory system is to move air in and out of the lungs. This process is called ________, respiration, or breathing.

Respiratory System

The body system consisting of organs and structures responsible for the intake of oxygen and the expulsion of carbon dioxide.

Lungs

Respiratory organs in the chest that intake oxygen and expel carbon dioxide as part of the breathing process.

Respiration

The process by which living organisms exchange oxygen and carbon dioxide, crucial for energy production and metabolic functions.