Table of contents

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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 endocrine gland secretes triiodothyronine (T3)?

Adrenal gland

Pancreas

Thyroid gland

Pituitary gland

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Verified step by step guidance

Begin by identifying the function of triiodothyronine (T3). T3 is a hormone that plays a crucial role in regulating metabolism, heart rate, and body temperature.

Understand the role of the thyroid gland in the endocrine system. The thyroid gland is located in the neck and is responsible for producing hormones that regulate the body's metabolic rate.

Recognize that the thyroid gland produces two primary hormones: thyroxine (T4) and triiodothyronine (T3). T3 is the more active form of the thyroid hormones.

Differentiate between the glands listed in the problem: the adrenal gland, pancreas, and pituitary gland. None of these glands produce T3; they have different functions and secrete other hormones.

Conclude that the thyroid gland is the correct answer, as it is the gland responsible for secreting triiodothyronine (T3), which is essential for metabolic regulation.