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 of the following is a characteristic of the kidneys?

They produce insulin for blood sugar regulation.

They are located in the thoracic cavity.

They regulate blood volume and composition.

They store bile for fat digestion.

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Verified step by step guidance

Step 1: Begin by identifying the primary functions of the kidneys. The kidneys are vital organs responsible for filtering blood, removing waste products, and maintaining homeostasis in the body.

Step 2: Understand that the kidneys regulate blood volume and composition by filtering out excess water, electrolytes, and waste products, while reabsorbing necessary substances like glucose and ions.

Step 3: Eliminate incorrect options based on anatomical and physiological knowledge. For example, the kidneys do not produce insulin (this is a function of the pancreas), nor are they located in the thoracic cavity (they are in the abdominal cavity).

Step 4: Recognize that bile storage is a function of the gallbladder, not the kidneys. This further eliminates another incorrect option.

Step 5: Conclude that the correct characteristic of the kidneys is their role in regulating blood volume and composition, as this aligns with their primary physiological function.