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 is true about cortical nephrons?

Cortical nephrons are primarily responsible for the concentration of urine.

Cortical nephrons have a long loop of Henle that extends deep into the medulla.

Cortical nephrons are located entirely within the renal medulla.

Cortical nephrons have a short loop of Henle that extends only slightly into the medulla.

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Verified step by step guidance

Begin by understanding the structure and function of nephrons in the kidney. Nephrons are the functional units of the kidney, responsible for filtering blood and forming urine.

Differentiate between cortical nephrons and juxtamedullary nephrons. Cortical nephrons are located primarily in the renal cortex, whereas juxtamedullary nephrons have loops of Henle that extend deep into the renal medulla.

Examine the loop of Henle in cortical nephrons. Cortical nephrons have a relatively short loop of Henle that extends only slightly into the medulla, which is crucial for their function.

Understand the role of cortical nephrons in urine concentration. While they do contribute to urine formation, they are not primarily responsible for concentrating urine; this function is more associated with juxtamedullary nephrons.

Review the location of cortical nephrons. They are not located entirely within the renal medulla; instead, they are mostly situated in the renal cortex, with only a small portion extending into the medulla.