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

16. The Endocrine System

Introduction to the Endocrine System

Anatomy & Physiology

16. The Endocrine System

Introduction to the Endocrine System

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Multiple Choice

Which hormone regulates the sodium and water levels in the body?

Glucagon

Thyroxine

Aldosterone

Insulin

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Verified step by step guidance

Begin by identifying the primary function of each hormone listed in the problem. Glucagon is involved in regulating blood glucose levels, Thyroxine is a thyroid hormone that influences metabolism, and Insulin helps lower blood glucose levels.

Understand the role of Aldosterone in the body. Aldosterone is a hormone produced by the adrenal glands that plays a crucial role in regulating sodium and water balance.

Aldosterone acts on the kidneys to increase the reabsorption of sodium and water into the bloodstream, while promoting the excretion of potassium. This process helps maintain blood pressure and fluid balance.

Consider the physiological mechanism: When blood pressure drops or when there is a decrease in sodium levels, the renin-angiotensin-aldosterone system (RAAS) is activated, leading to the secretion of Aldosterone.

Conclude that Aldosterone is the hormone responsible for regulating sodium and water levels in the body, as it directly influences kidney function to maintain homeostasis.