Q. What is tidal volume?

A
The normal volume moved in or out of the lungs during quiet breathing
B
Related to high tide in the sea
C
Muscle movement
D
Enzyme production in the digestive system
Solution:

Tidal volume (symbol VT or TV) is the lung volume representing the normal volume of air displaced between normal inhalation and exhalation when extra effort is not applied. In a healthy, young human adult, tidal volume is approximately 500 mL per inspiration or 7 mL/kg of body mass.

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