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

4. Tissues & Histology

Introduction to Nervous Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Nervous Tissue

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Multiple Choice

Which primary germ layer gives rise to the cells that eventually become the central nervous system?

Mesoderm

Hypoderm

Ectoderm

Endoderm

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Verified step by step guidance

Understand the concept of germ layers: In embryonic development, three primary germ layers form, which are the ectoderm, mesoderm, and endoderm. Each of these layers gives rise to different tissues and organs in the body.

Identify the role of the ectoderm: The ectoderm is the outermost germ layer. It is responsible for forming structures such as the skin, hair, nails, and importantly, the nervous system, including the central nervous system (CNS).

Differentiate between the germ layers: The mesoderm forms structures such as muscles, bones, and the circulatory system, while the endoderm forms the lining of the digestive and respiratory systems. The hypoderm is not a primary germ layer.

Focus on the central nervous system: The central nervous system, which includes the brain and spinal cord, originates from the neural tube, a structure that develops from the ectoderm during embryogenesis.

Conclude with the correct germ layer: Based on the roles of each germ layer, the ectoderm is the primary germ layer that gives rise to the cells forming the central nervous system.