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 of the following neuroglial cells is responsible for forming the myelin sheath in the central nervous system (CNS)?

Oligodendrocytes

Microglia

Schwann cells

Astrocytes

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Verified step by step guidance

Step 1: Understand the role of the myelin sheath. The myelin sheath is a protective covering that surrounds axons in the nervous system, allowing for faster transmission of electrical impulses.

Step 2: Differentiate between the central nervous system (CNS) and peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all other neural structures.

Step 3: Identify the neuroglial cells responsible for forming the myelin sheath in the CNS. Oligodendrocytes are the specific neuroglial cells that produce and maintain the myelin sheath in the CNS.

Step 4: Compare oligodendrocytes with Schwann cells. Schwann cells perform a similar function but are responsible for forming the myelin sheath in the PNS, not the CNS.

Step 5: Eliminate the other options. Microglia are immune cells in the CNS that remove debris and pathogens, while astrocytes provide structural and metabolic support to neurons but do not form the myelin sheath.