Question

multiple choice question
what is tidal volume?
o volume of air moved during a maximal inspiration
o volume of air moved in and out a single respiratory cycle
o total volume of air that will fill up the lungs
o volume of air left in the lungs after a maximal expiration

Explanation:

Tidal volume is defined as the volume of air that moves in and out of the lungs during a single respiratory cycle (inspiration and expiration).

• The volume of air moved during a maximal inspiration is related to inspiratory capacity.
• The total volume of air that fills the lungs is total lung capacity.
• The volume of air left in the lungs after maximal expiration is residual volume.

Answer:

volume of air moved in and out a single respiratory cycle