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

Antidiuretic hormone (ADH) targets the __________.

pancreas

liver

kidneys

thyroid gland

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Verified step by step guidance

Step 1: Understand the role of antidiuretic hormone (ADH). ADH is a hormone produced by the hypothalamus and stored in the posterior pituitary gland. Its primary function is to regulate water balance in the body by controlling the amount of water reabsorbed by the kidneys.

Step 2: Identify the target organ of ADH. ADH specifically acts on the kidneys, targeting structures called nephrons, which are the functional units of the kidneys. It increases the permeability of the collecting ducts to water, allowing more water to be reabsorbed into the bloodstream.

Step 3: Eliminate incorrect options. The pancreas is involved in insulin and glucagon secretion for blood sugar regulation, the liver is responsible for metabolic processes and detoxification, and the thyroid gland regulates metabolism through thyroid hormones. None of these organs are directly involved in water reabsorption.

Step 4: Confirm the correct answer. The kidneys are the organ responsible for filtering blood and maintaining fluid balance, making them the correct target for ADH.

Step 5: Relate this concept to physiology. The action of ADH on the kidneys helps prevent dehydration by conserving water, which is crucial for maintaining homeostasis in the body.