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

Introduction to Lung Physiology

Anatomy & Physiology

22. The Respiratory System

Introduction to Lung Physiology

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Multiple Choice

Which one of the following statements about pleural fluid and the pleural cavity is incorrect?

Pleural fluid reduces friction between the pleurae during breathing.

Pleural fluid helps maintain surface tension, preventing lung collapse.

The pleural cavity is located between the visceral and parietal pleurae.

The pleural cavity is a real space filled with a large volume of fluid.

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Verified step by step guidance

Understand the role of pleural fluid: Pleural fluid is a lubricating fluid that reduces friction between the pleurae (visceral and parietal) during breathing, allowing the lungs to move smoothly within the thoracic cavity.

Recognize the function of surface tension: Pleural fluid helps maintain surface tension, which is crucial for keeping the lungs inflated and preventing lung collapse (atelectasis).

Identify the location of the pleural cavity: The pleural cavity is the potential space between the visceral pleura (covering the lungs) and the parietal pleura (lining the chest wall).

Clarify the nature of the pleural cavity: The pleural cavity is not a 'real' space filled with a large volume of fluid; instead, it is a potential space with a small amount of pleural fluid to facilitate movement and maintain surface tension.

Evaluate the statements: Based on the understanding of pleural fluid and the pleural cavity, identify that the incorrect statement is the one suggesting the pleural cavity is a real space filled with a large volume of fluid, as it is actually a potential space with minimal fluid.