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

28. Human Development

Extraembryonic Membrane Development

Anatomy & Physiology

28. Human Development

Extraembryonic Membrane Development

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Multiple Choice

Which of the following is not an extraembryonic membrane?

Chorion

Endoderm

Amnion

Yolk sac

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Understand the concept of extraembryonic membranes: These are structures that support the developing embryo in mammals, birds, and reptiles. They include the chorion, amnion, yolk sac, and allantois.

Identify the function of each extraembryonic membrane: The chorion contributes to the formation of the placenta, the amnion encloses the amniotic fluid, the yolk sac provides early nourishment, and the allantois is involved in waste removal and gas exchange.

Recognize that the endoderm is not an extraembryonic membrane: The endoderm is one of the three primary germ layers in the early embryo, which gives rise to the lining of the digestive and respiratory systems, among other structures.

Differentiate between germ layers and extraembryonic membranes: Germ layers (endoderm, mesoderm, ectoderm) form the tissues and organs of the embryo, while extraembryonic membranes support the embryo's development.

Conclude that the endoderm is not an extraembryonic membrane, as it is a germ layer involved in forming the embryo's internal structures.