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

Introduction to Human Development

Anatomy & Physiology

28. Human Development

Introduction to Human Development

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Multiple Choice

Which of the following is not one of the germ layers formed during gastrulation?

Ectoderm

Mesoderm

Periderm

Endoderm

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Verified step by step guidance

Understand the concept of gastrulation: Gastrulation is a phase early in the embryonic development during which the single-layered blastula is reorganized into a multilayered structure known as the gastrula.

Identify the germ layers formed during gastrulation: The three primary germ layers formed are the ectoderm, mesoderm, and endoderm.

Define each germ layer: The ectoderm forms the outermost layer and gives rise to structures such as the skin and nervous system. The mesoderm forms the middle layer and develops into muscles, bones, and the circulatory system. The endoderm forms the innermost layer and becomes the gastrointestinal tract and other internal organs.

Recognize the term 'Periderm': The periderm is not a germ layer formed during gastrulation. It is a temporary embryonic layer that forms part of the developing skin but is not one of the primary germ layers.

Conclude which option is not a germ layer: Based on the definitions and roles of each layer, identify that 'Periderm' is not one of the germ layers formed during gastrulation.