Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

22. The Respiratory System

Lung Volumes and Capacities

Anatomy & Physiology

22. The Respiratory System

Lung Volumes and Capacities

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Multiple Choice

The volume of air exchanged during normal breathing is called the ____________.

vital capacity

inspiratory reserve volume

residual volume

tidal volume

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Verified step by step guidance

Understand the concept of lung volumes and capacities: Lung volumes refer to the amount of air in the lungs during different phases of the respiratory cycle. These include tidal volume, vital capacity, inspiratory reserve volume, and residual volume.

Define tidal volume: Tidal volume is the amount of air exchanged during normal, relaxed breathing. It represents the air inhaled and exhaled in a single breath under resting conditions.

Differentiate tidal volume from other lung volumes: Vital capacity is the maximum amount of air a person can exhale after a maximum inhalation. 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 maximal exhalation.

Recognize the context of the question: The problem specifically asks for the volume of air exchanged during normal breathing, which matches the definition of tidal volume.

Confirm the correct answer: Based on the definitions and context provided, the correct answer is 'tidal volume,' as it directly refers to the air exchanged during normal breathing.