Final answer:
The volume of gas inspired or expired in a quiet respiration cycle is the Tidal volume.
Step-by-step explanation:
The volume of gas inspired or expired in a quiet respiration cycle is the Tidal volume.
Tidal volume refers to the amount of air that enters the lungs during quiet breathing. It is the volume of air exchanged in one inhalation or exhalation without extra effort. Tidal volume is important for normal respiratory function and is typically around 500 milliliters.