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

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which hormone is directly responsible for the development of secondary sex characteristics in males?

Progesterone

Estrogen

Testosterone

Cortisol

Verified step by step guidance

Identify the primary male sex hormone responsible for secondary sex characteristics.

Understand that secondary sex characteristics in males include features such as facial hair, deepening of the voice, and increased muscle mass.

Recognize that testosterone is the hormone that plays a crucial role in the development of these characteristics.

Differentiate testosterone from other hormones such as progesterone, estrogen, and cortisol, which have different roles in the body.

Conclude that testosterone is the hormone directly responsible for the development of secondary sex characteristics in males.

Master Types of Chemical Messengers with a bite sized video explanation from Bruce Bryan

Problem sets built by lead tutors

Expert video explanations