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

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Multiple Choice

Most changes in urine volume are linked to varying levels of which hormone?

Insulin

Antidiuretic hormone (ADH)

Cortisol

Aldosterone

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Verified step by step guidance

Step 1: Understand the role of hormones in regulating urine volume. Hormones like Antidiuretic Hormone (ADH), Aldosterone, Cortisol, and Insulin have distinct functions in the body, but only specific ones directly influence urine production and volume.

Step 2: Focus on ADH (Antidiuretic Hormone). ADH is secreted by the posterior pituitary gland and plays a key role in water reabsorption in the kidneys. It increases the permeability of the kidney's collecting ducts to water, reducing urine volume when water needs to be conserved.

Step 3: Consider Aldosterone. Aldosterone is secreted by the adrenal glands and regulates sodium and potassium balance. While it indirectly affects urine volume by promoting sodium reabsorption, its primary role is in electrolyte balance rather than direct control of water reabsorption.

Step 4: Evaluate Cortisol and Insulin. Cortisol is involved in stress responses and metabolism, while Insulin regulates blood glucose levels. Neither hormone has a direct role in controlling urine volume.

Step 5: Conclude that ADH is the primary hormone responsible for changes in urine volume, as it directly influences water reabsorption in the kidneys, making it the correct answer to the question.