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

In the context of lung physiology, what is the respiratory zone?

The part of the lung responsible for filtering and humidifying incoming air.

The region of the lung that includes the trachea and primary bronchi.

The area where gas exchange occurs, including the alveoli and respiratory bronchioles.

The section of the lung that contains the pleural cavity.

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Verified step by step guidance

Understand the structure of the respiratory system: The respiratory system is divided into two main zones - the conducting zone and the respiratory zone.

Identify the function of the conducting zone: The conducting zone includes structures like the trachea and bronchi, which are responsible for filtering, warming, and humidifying the air, but not for gas exchange.

Define the respiratory zone: The respiratory zone is the part of the lung where gas exchange occurs. It includes the alveoli and the respiratory bronchioles.

Recognize the role of alveoli: Alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged between the air and the blood.

Differentiate between the zones: The key difference is that the respiratory zone is involved in gas exchange, while the conducting zone is not. This distinction helps in understanding the function of different parts of the lung.