Which specific lung volume represents the volume of air that remains in the lungs after a maximal forceful expiration?
Show answer and explanation
Correct answer: Residual Volume
The Residual Volume (RV) is the amount of air that cannot be expelled from the lungs regardless of effort. It prevents the alveoli from collapsing completely (atelectasis) and allows for continuous gas exchange between breaths.
Keep practicing
More Lung Volumes and Capacities questions
- A researcher uses the helium dilution method to determine a subject's lung volume. The formula used is $V_2 = V_1 \times \frac{C_1 - C_2}{C…
- Anatomical dead space refers to the volume of air in which of the following areas?
- Which of the following changes is characteristic of a restrictive lung disease, such as pulmonary fibrosis?
- Closing Volume (CV) is the volume of air remaining in the lungs when:
- During moderate exercise, which of the following adjustments in lung volumes typically occurs to increase minute ventilation?
- What is the primary advantage of body plethysmography over helium dilution for measuring lung volumes?