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 hormone is primarily responsible for signaling ovulation in the female reproductive cycle?

Follicle-stimulating hormone (FSH)

Progesterone

Estrogen

Luteinizing hormone (LH)

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Verified step by step guidance

Understand the female reproductive cycle: The menstrual cycle is divided into phases, including the follicular phase, ovulation, and the luteal phase. Hormones play a key role in regulating these phases.

Identify the role of luteinizing hormone (LH): LH is a hormone secreted by the anterior pituitary gland. It plays a critical role in triggering ovulation, which is the release of a mature egg from the ovary.

Recognize the hormonal surge: During the follicular phase, estrogen levels rise, leading to a surge in LH. This LH surge is the primary signal for ovulation to occur.

Differentiate LH from other hormones: Follicle-stimulating hormone (FSH) helps in the growth and maturation of ovarian follicles, estrogen helps thicken the uterine lining, and progesterone maintains the uterine lining after ovulation. None of these directly trigger ovulation like LH does.

Conclude that LH is the correct answer: Based on its role in signaling ovulation, luteinizing hormone (LH) is the hormone primarily responsible for this process.