Multiple Choice
Which system works with the respiratory system to contract the diaphragm for breathing?
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22. The Respiratory System
Introduction to Lung Physiology
Multiple Choice
Which term refers to the volume of air inhaled or exhaled during each respiratory cycle?
A
Tidal volume
B
Residual volume
C
Inspiratory reserve volume
D
Vital capacity
Verified step by step guidance1
Step 1: Begin by understanding the key terms related to lung volumes. Tidal volume refers to the amount of air inhaled or exhaled during a normal respiratory cycle without any extra effort.
Step 2: Compare tidal volume with other terms provided in the options. Residual volume is the amount of air remaining in the lungs after a maximal exhalation, which is not involved in regular breathing cycles.
Step 3: Next, consider inspiratory reserve volume. This is the additional air that can be inhaled with maximum effort after a normal inhalation, which is different from the air exchanged during a regular cycle.
Step 4: Finally, vital capacity refers to the total amount of air that can be exhaled after a maximal inhalation, encompassing tidal volume, inspiratory reserve volume, and expiratory reserve volume.
Step 5: Based on the definitions, identify that tidal volume specifically matches the description of air exchanged during each respiratory cycle, making it the correct term.
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