Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The functional residual capacity is the volume of air normally left in the lungs after a tidal expiration.
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22. The Respiratory System
Lung Volumes and Capacities
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What is the amount of air exchanged during normal breathing called?
A
Inspiratory Reserve Volume
B
Tidal Volume
C
Residual Volume
D
Vital Capacity
Verified step by step guidance1
Understand the concept of lung volumes and capacities: Lung volumes refer to the different amounts of air the lungs can hold during various phases of the respiratory cycle.
Identify the term 'Tidal Volume': Tidal Volume is the amount of air that is inhaled or exhaled during normal, relaxed breathing.
Differentiate between other terms: Inspiratory Reserve Volume is the additional air that can be inhaled after a normal inhalation. Residual Volume is the air remaining in the lungs after a forceful exhalation. Vital Capacity is the total amount of air that can be exhaled after a maximum inhalation.
Relate the term to normal breathing: Tidal Volume specifically refers to the air exchanged during normal, unforced breathing, which is typically around 500 mL in a healthy adult.
Conclude with the correct identification: Based on the definitions, the amount of air exchanged during normal breathing is called Tidal Volume.
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