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 describes the order in which blood flows through the nephron?

Glomerulus, afferent arteriole, efferent arteriole, peritubular capillaries

Afferent arteriole, glomerulus, efferent arteriole, peritubular capillaries

Efferent arteriole, glomerulus, afferent arteriole, peritubular capillaries

Peritubular capillaries, afferent arteriole, glomerulus, efferent arteriole

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Verified step by step guidance

Understand the structure of the nephron: The nephron is the functional unit of the kidney, responsible for filtering blood and forming urine. It consists of several parts, including the glomerulus, afferent and efferent arterioles, and peritubular capillaries.

Identify the role of the afferent arteriole: The afferent arteriole carries blood to the glomerulus. It is the entry point for blood into the nephron's filtering system.

Recognize the function of the glomerulus: The glomerulus is a network of capillaries where blood filtration begins. Blood pressure forces water and solutes out of the blood and into the Bowman's capsule.

Determine the path of blood after the glomerulus: The efferent arteriole carries blood away from the glomerulus. It has a smaller diameter than the afferent arteriole, which helps maintain pressure in the glomerulus for filtration.

Follow the blood to the peritubular capillaries: After passing through the efferent arteriole, blood enters the peritubular capillaries, which surround the nephron tubules and are involved in the reabsorption and secretion processes.