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

What is the main difference between the conducting zone and the respiratory zone in the respiratory system?

The conducting zone is responsible for gas exchange, while the respiratory zone is not.

The conducting zone includes structures like the trachea and bronchi, while the respiratory zone includes alveoli where gas exchange occurs.

The conducting zone is involved in the immune response, while the respiratory zone is not.

The conducting zone is where oxygen is absorbed into the blood, while the respiratory zone filters and humidifies air.

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Verified step by step guidance

Begin by understanding the structure and function of the respiratory system, which is divided into two main zones: the conducting zone and the respiratory zone.

The conducting zone consists of structures such as the trachea, bronchi, bronchioles, and terminal bronchioles. Its primary function is to transport air to the lungs, filter, humidify, and warm the air, but it does not participate in gas exchange.

The respiratory zone includes structures such as the respiratory bronchioles, alveolar ducts, and alveoli. This zone is where the actual gas exchange occurs between the air and the blood.

Recognize that the alveoli are tiny air sacs within the lungs where oxygen is absorbed into the blood and carbon dioxide is expelled from the blood, making them crucial for the respiratory zone's function.

Differentiate between the zones by noting that the conducting zone is primarily involved in air passage and conditioning, while the respiratory zone is directly involved in gas exchange.