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

25. The Urinary System

The Kidneys

Anatomy & Physiology

25. The Urinary System

The Kidneys

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Multiple Choice

Which organ is responsible for continuously purifying the blood?

Kidneys

Liver

Heart

Lungs

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Verified step by step guidance

Begin by understanding the primary functions of each organ listed in the options: kidneys, liver, heart, and lungs.

The kidneys are responsible for filtering waste products from the blood and excreting them as urine. They play a crucial role in maintaining homeostasis by regulating blood pressure, electrolyte balance, and red blood cell production.

The liver processes nutrients absorbed from the digestive tract, detoxifies chemicals, and metabolizes drugs. It also produces important proteins for blood plasma and helps in the clotting process.

The heart pumps blood throughout the body, delivering oxygen and nutrients to tissues and removing carbon dioxide and other wastes. It is essential for maintaining circulation but does not purify blood.

The lungs are responsible for gas exchange, allowing oxygen to enter the blood and carbon dioxide to be expelled. While they play a role in removing carbon dioxide, they do not filter other waste products from the blood.