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 organs provides oxygen to the blood?

Liver

Heart

Kidneys

Lungs

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Verified step by step guidance

Begin by identifying the primary function of each organ listed in the options. The liver is involved in detoxification and metabolism, the heart pumps blood throughout the body, and the kidneys filter waste from the blood.

Understand the role of the lungs in the respiratory system. The lungs are responsible for gas exchange, where oxygen is absorbed into the bloodstream and carbon dioxide is expelled from the body.

Consider the process of respiration. When you inhale, air enters the lungs and oxygen is transferred to the blood through the alveoli, tiny air sacs in the lungs.

Recognize that the lungs are the only organ among the options that directly provide oxygen to the blood. This is a key function of the respiratory system.

Conclude that the lungs are the correct answer because they facilitate the exchange of gases, specifically providing oxygen to the blood, which is essential for cellular respiration and energy production in the body.