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

The kidneys play a major role in the human excretory system by filtering which fluid?

Blood

Cerebrospinal fluid

Lymph

Bile

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Verified step by step guidance

Understand the primary function of the kidneys in the human body, which is to filter waste products from the bloodstream and regulate fluid and electrolyte balance.

Identify the fluid that circulates throughout the body and contains waste products that need to be filtered. This fluid is responsible for transporting nutrients and oxygen to cells and carrying away waste products.

Consider the options provided: Blood, Cerebrospinal fluid, Lymph, and Bile. Determine which of these fluids is directly involved in the filtration process by the kidneys.

Recall that the kidneys receive a large supply of blood through the renal arteries, which is then filtered to remove waste products and excess substances, forming urine.

Conclude that the fluid filtered by the kidneys is blood, as it is the only option that aligns with the kidneys' role in filtering waste and maintaining homeostasis in the body.