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

Renal Physiology: Overview

Anatomy & Physiology

25. The Urinary System

Renal Physiology: Overview

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which statement best describes the function of tubular reabsorption in the nephron?

It removes waste products from the blood into the filtrate.

It returns useful substances from the filtrate back into the blood.

It increases the glomerular filtration rate.

It regulates the secretion of hormones by the kidneys.

Previous problemNext problem

Verified step by step guidance

Step 1: Understand the nephron's role in the kidney. The nephron is the functional unit of the kidney responsible for filtering blood, removing waste, and regulating water and electrolyte balance.

Step 2: Define tubular reabsorption. Tubular reabsorption is the process by which the nephron returns useful substances, such as water, glucose, amino acids, and ions, from the filtrate back into the bloodstream.

Step 3: Differentiate tubular reabsorption from other nephron processes. For example, tubular secretion involves moving waste products and excess substances from the blood into the filtrate, while glomerular filtration is the initial step of filtering blood to form the filtrate.

Step 4: Evaluate the provided statements. Identify which statement aligns with the definition of tubular reabsorption. The correct statement should describe the return of useful substances from the filtrate back into the blood.

Step 5: Confirm that tubular reabsorption does not directly regulate hormone secretion or increase the glomerular filtration rate, as these are separate processes within kidney function.