Mr. Huff and Puff exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called the functional residual capacity O residual volume O tidal volume O expiratory reserve volume

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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### QUESTION 5

Mr. Huff and Puff exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called the _____.

- [ ] functional residual capacity
- [ ] residual volume
- [ ] tidal volume
- [ ] expiratory reserve volume

#### Explanation:

This multiple-choice question tests the understanding of lung volumes and capacities in the context of respiratory physiology. After normal exhalation followed by forced exhalation, the volume of air that remains in the lungs is known as the **residual volume**. The other options provided relate to different aspects of breathing and lung capacity:

- **Functional residual capacity** (FRC) is the volume of air remaining in the lungs after a normal, passive exhalation.
- **Residual volume** (RV) is the volume of air that remains in the lungs after maximal exhalation, which is the correct answer.
- **Tidal volume** (TV) is the amount of air inhaled or exhaled during normal, relaxed breathing.
- **Expiratory reserve volume** (ERV) is the additional amount of air that can be exhaled with effort after normal exhalation.
Transcribed Image Text:### QUESTION 5 Mr. Huff and Puff exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called the _____. - [ ] functional residual capacity - [ ] residual volume - [ ] tidal volume - [ ] expiratory reserve volume #### Explanation: This multiple-choice question tests the understanding of lung volumes and capacities in the context of respiratory physiology. After normal exhalation followed by forced exhalation, the volume of air that remains in the lungs is known as the **residual volume**. The other options provided relate to different aspects of breathing and lung capacity: - **Functional residual capacity** (FRC) is the volume of air remaining in the lungs after a normal, passive exhalation. - **Residual volume** (RV) is the volume of air that remains in the lungs after maximal exhalation, which is the correct answer. - **Tidal volume** (TV) is the amount of air inhaled or exhaled during normal, relaxed breathing. - **Expiratory reserve volume** (ERV) is the additional amount of air that can be exhaled with effort after normal exhalation.
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