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 Nephron

Anatomy & Physiology

25. The Urinary System

The Nephron

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Multiple Choice

Which of the following statements best describes the role of the nephron in the urinary system?

The nephron is solely responsible for the formation of urine.

The nephron only filters blood but does not contribute to urine formation.

Urine formation occurs exclusively in the renal pelvis, not the nephron.

The nephron stores urine until it is excreted from the body.

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Verified step by step guidance

Step 1: Begin by understanding the nephron's role in the urinary system. The nephron is the functional unit of the kidney and is responsible for filtering blood, reabsorbing essential substances, and secreting waste products to form urine.

Step 2: Break down the process of urine formation in the nephron. It involves three main steps: filtration (occurs in the glomerulus), reabsorption (occurs in the tubules), and secretion (occurs in the tubules). These processes collectively contribute to urine formation.

Step 3: Evaluate the given statements. The nephron is not solely responsible for urine formation, as urine formation involves multiple processes and structures within the kidney. The nephron does not store urine; storage occurs in the bladder. Urine formation does not occur exclusively in the renal pelvis; the renal pelvis collects urine formed by the nephrons.

Step 4: Identify the correct statement based on the nephron's role. The nephron is indeed responsible for the formation of urine through filtration, reabsorption, and secretion, making it the primary structure involved in this process.

Step 5: Conclude that the correct description of the nephron's role is that it is responsible for the formation of urine, emphasizing its importance in the urinary system.