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

Introduction to the Urinary System

Anatomy & Physiology

25. The Urinary System

Introduction to the Urinary System

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Multiple Choice

Which organ plays the most significant role in regulating water output in the human body?

Liver

Pancreas

Kidneys

Spleen

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Verified step by step guidance

Understand the role of water regulation in the human body: Water output is primarily controlled to maintain homeostasis, which involves balancing fluid levels, electrolytes, and waste removal.

Identify the primary organ responsible for water output regulation: The kidneys are the key organs in this process, as they filter blood, remove waste, and adjust water and electrolyte levels through urine production.

Explain the mechanism of kidney function: The kidneys use structures called nephrons to filter blood. Within the nephron, the glomerulus filters out waste and excess substances, while the tubules reabsorb water and essential nutrients based on the body's needs.

Discuss hormonal control: The kidneys are influenced by hormones such as antidiuretic hormone (ADH) and aldosterone, which regulate water reabsorption and sodium balance, respectively, to control urine concentration and volume.

Compare other organs: While the liver, pancreas, and spleen have important roles in digestion, metabolism, and immune function, they do not directly regulate water output like the kidneys do.