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 reaches its highest levels in the bloodstream after ovulation has occurred?

Follicle-stimulating hormone (FSH)

Estrogen

Progesterone

Luteinizing hormone (LH)

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Verified step by step guidance

Step 1: Understand the context of the menstrual cycle. The menstrual cycle is divided into phases: the follicular phase, ovulation, and the luteal phase. Hormone levels fluctuate during these phases to regulate the cycle.

Step 2: Recall the role of each hormone mentioned. Follicle-stimulating hormone (FSH) stimulates follicle growth in the ovaries during the follicular phase. Estrogen is produced by the growing follicles and peaks just before ovulation. Luteinizing hormone (LH) surges to trigger ovulation. Progesterone is produced by the corpus luteum after ovulation to prepare the uterus for potential pregnancy.

Step 3: Focus on the luteal phase, which occurs after ovulation. During this phase, the corpus luteum forms from the ruptured follicle and secretes progesterone. Progesterone levels rise significantly during this time.

Step 4: Compare the hormone levels during the luteal phase. FSH and LH levels decrease after ovulation, while estrogen levels may remain elevated but do not peak. Progesterone reaches its highest levels during the luteal phase.

Step 5: Conclude that progesterone is the hormone that reaches its highest levels in the bloodstream after ovulation has occurred, as it plays a critical role in maintaining the uterine lining for potential implantation.