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 is primarily responsible for filtering blood and forming urine in the human urinary system?

Urethra

Bladder

Ureters

Kidneys

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Verified step by step guidance

Step 1: Begin by understanding the primary function of the urinary system, which is to remove waste products and excess substances from the blood, regulate fluid and electrolyte balance, and produce urine.

Step 2: Identify the role of each organ listed in the problem: the urethra is responsible for transporting urine out of the body, the bladder stores urine, and the ureters transport urine from the kidneys to the bladder.

Step 3: Focus on the kidneys, which are the primary organs responsible for filtering blood. They contain millions of nephrons, which are microscopic structures that filter blood, remove waste, and regulate water and electrolyte balance.

Step 4: Understand the process of urine formation in the kidneys. It involves three main steps: filtration (in the glomerulus), reabsorption (in the tubules), and secretion (in the tubules). These processes ensure that waste products are removed while essential substances are retained.

Step 5: Conclude that the kidneys are the correct answer because they are the organs primarily responsible for filtering blood and forming urine in the human urinary system.