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 blood vessels are primarily responsible for absorbing solutes and water reabsorbed from the nephron?

Peritubular capillaries

Vasa recta

Afferent arterioles

Glomerular capillaries

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Verified step by step guidance

Understand the anatomy of the nephron: The nephron is the functional unit of the kidney, responsible for filtering blood and forming urine. It consists of structures such as the glomerulus, proximal tubule, loop of Henle, distal tubule, and collecting duct. Blood vessels associated with the nephron play key roles in filtration, reabsorption, and secretion.

Identify the role of each blood vessel: The glomerular capillaries are involved in filtration, where blood plasma is filtered into the Bowman's capsule. The afferent arterioles bring blood to the glomerulus, while the efferent arterioles carry blood away from it. The peritubular capillaries and vasa recta are involved in reabsorption and secretion processes.

Focus on reabsorption: Solutes and water reabsorbed from the nephron are primarily absorbed into the blood through the peritubular capillaries and vasa recta. These capillaries surround the nephron tubules and are adapted for exchange of substances between the nephron and blood.

Differentiate the functions of the listed vessels: The glomerular capillaries are responsible for filtration, not reabsorption. The afferent arterioles supply blood to the glomerulus but are not directly involved in reabsorption. The peritubular capillaries and vasa recta are specialized for reabsorbing solutes and water from the nephron.

Conclude with the correct answer: Based on their roles, the blood vessels primarily responsible for absorbing solutes and water reabsorbed from the nephron are the peritubular capillaries and the vasa recta.