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 of the following are necessary for oxygen to reach the cells of your body?

Efficient functioning of the respiratory system

Increased levels of nitrogen in the lungs

Presence of carbon dioxide in the bloodstream

Blockage of the alveoli

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Verified step by step guidance

Understand the role of the respiratory system: The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide. Efficient functioning of this system is crucial for oxygen to reach the cells.

Consider the role of alveoli: Alveoli are tiny air sacs in the lungs where gas exchange occurs. Blockage of the alveoli would prevent oxygen from entering the bloodstream, thus hindering its delivery to cells.

Evaluate the presence of carbon dioxide: Carbon dioxide is a waste product of cellular respiration and is transported in the bloodstream to be expelled by the lungs. Its presence is normal, but it does not directly aid in oxygen delivery to cells.

Assess the impact of nitrogen: Nitrogen is the most abundant gas in the air we breathe, but it is inert and does not participate in the gas exchange process necessary for oxygen delivery to cells.

Identify the necessary condition: Efficient functioning of the respiratory system is necessary for oxygen to reach the cells, as it ensures proper ventilation, gas exchange, and oxygen transport in the bloodstream.