Which of the following describes tidal volume?

A. The amount of air moved in a normal breath (inspired or expired) at rest
B. The amount of air that can be forcefully expired beyond the amount expired in a normal breath at rest
C. The amount of air that can be forcefully inspired beyond the amount inspired in a normal breath at rest
D. The amount of air in the lungs that cannot be moved


Answer: A

Anatomy & Physiology

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