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

27. The Reproductive System

Introduction to the Reproductive System

Anatomy & Physiology

27. The Reproductive System

Introduction to the Reproductive System

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Multiple Choice

Which of the following correctly lists the stages of the uterine (menstrual) cycle in order?

Proliferative phase, secretory phase, menstrual phase

Menstrual phase, proliferative phase, secretory phase

Menstrual phase, secretory phase, proliferative phase

Secretory phase, menstrual phase, proliferative phase

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Verified step by step guidance

Understand that the uterine (menstrual) cycle is divided into three main phases: menstrual phase, proliferative phase, and secretory phase. These phases correspond to changes in the endometrium of the uterus in response to hormonal fluctuations.

The menstrual phase is the first phase of the cycle, during which the endometrial lining is shed if pregnancy does not occur. This phase typically lasts about 3-7 days.

The proliferative phase follows the menstrual phase. During this phase, the endometrium begins to rebuild itself under the influence of estrogen produced by the ovaries. This phase prepares the uterus for potential implantation of a fertilized egg.

The secretory phase is the final phase of the cycle. During this phase, the endometrium becomes thicker and more vascularized under the influence of progesterone, which is secreted by the corpus luteum. This phase supports implantation and early pregnancy if fertilization occurs.

To correctly list the stages of the uterine cycle in order, arrange them as follows: menstrual phase, proliferative phase, secretory phase. This sequence reflects the natural progression of the cycle.