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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 of the following is NOT an effect of parathyroid hormone (PTH)?

Stimulates osteoclast activity

Promotes calcium reabsorption in the kidneys

Increases blood calcium levels

Decreases calcium absorption in the intestines

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Understand the role of parathyroid hormone (PTH) in the body. PTH is crucial for maintaining calcium homeostasis.

Identify the primary actions of PTH: it stimulates osteoclast activity, promotes calcium reabsorption in the kidneys, and increases blood calcium levels.

Recognize that PTH also increases calcium absorption in the intestines by stimulating the production of active vitamin D (calcitriol), which enhances intestinal absorption of calcium.

Evaluate the options given in the problem. The first three options are known effects of PTH, while the last option contradicts the known function of PTH.

Conclude that the statement 'Decreases calcium absorption in the intestines' is NOT an effect of PTH, as PTH actually increases calcium absorption in the intestines.