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 endocrine gland produces the hormones that direct the development of secondary male sex characteristics?

Pancreas

Adrenal cortex

Thyroid gland

Testes

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Verified step by step guidance

Step 1: Begin by identifying the function of secondary male sex characteristics. These include traits such as increased muscle mass, deepening of the voice, and facial hair growth, which are influenced by specific hormones.

Step 2: Understand that secondary male sex characteristics are primarily regulated by androgens, which are male sex hormones. The most well-known androgen is testosterone.

Step 3: Review the role of the testes in the endocrine system. The testes are the primary male reproductive organs and are responsible for producing testosterone, which is crucial for the development of secondary male sex characteristics.

Step 4: Compare the functions of the other glands listed in the problem: the pancreas regulates blood sugar levels through insulin and glucagon, the adrenal cortex produces corticosteroids and some androgens but not in significant amounts for secondary male sex characteristics, and the thyroid gland regulates metabolism through thyroid hormones.

Step 5: Conclude that the testes are the endocrine gland responsible for producing the hormones (primarily testosterone) that direct the development of secondary male sex characteristics.