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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

The parathyroid gland does all of the following except:

Regulate blood calcium levels

Influence bone resorption

Secrete parathyroid hormone (PTH)

Control metabolic rate

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Verified step by step guidance

Step 1: Begin by identifying the primary function of the parathyroid gland. The parathyroid gland is responsible for regulating calcium levels in the blood through the secretion of parathyroid hormone (PTH). This hormone plays a key role in calcium homeostasis.

Step 2: Understand the role of PTH in influencing bone resorption. PTH stimulates osteoclasts, which are cells that break down bone tissue, releasing calcium into the bloodstream. This process is essential for maintaining adequate calcium levels.

Step 3: Note that the parathyroid gland does not control metabolic rate. Metabolic rate is primarily regulated by the thyroid gland through the secretion of thyroid hormones such as thyroxine (T4) and triiodothyronine (T3). This is a distinct function separate from the parathyroid gland.

Step 4: Compare the listed functions in the question with the known roles of the parathyroid gland. The gland regulates blood calcium levels, influences bone resorption, and secretes PTH, but it does not control metabolic rate.

Step 5: Conclude that the correct answer is 'Control metabolic rate,' as this is not a function of the parathyroid gland. This distinction highlights the difference between the roles of the parathyroid and thyroid glands.