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

How would paralysis of the diaphragm affect the process of inspiration?

It would prevent the lungs from expanding, leading to difficulty in breathing.

It would increase the rate of breathing due to compensatory mechanisms.

It would enhance the efficiency of gas exchange in the alveoli.

It would have no significant effect on the process of inspiration.

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Verified step by step guidance

Understand the role of the diaphragm in the process of inspiration: The diaphragm is a dome-shaped muscle that contracts and flattens during inspiration, increasing the volume of the thoracic cavity and decreasing the pressure inside, allowing air to flow into the lungs.

Consider the effect of diaphragm paralysis: If the diaphragm is paralyzed, it cannot contract and flatten, which means the thoracic cavity cannot expand properly.

Analyze the impact on lung expansion: Without the diaphragm's movement, the lungs cannot expand effectively, leading to reduced air intake and difficulty in breathing.

Evaluate compensatory mechanisms: The body may attempt to compensate for reduced lung expansion by increasing the rate of breathing, but this does not enhance the efficiency of gas exchange.

Conclude the overall effect: Paralysis of the diaphragm would prevent the lungs from expanding properly, leading to difficulty in breathing, rather than enhancing gas exchange or having no effect.