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 is a function of the myelin sheath?

To increase the speed of nerve impulse conduction

To produce neurotransmitters

To provide nutrients to neurons

To generate action potentials

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Verified step by step guidance

Understand the structure of a neuron: Neurons are composed of a cell body, dendrites, and an axon. The axon is often covered by a myelin sheath.

Learn about the myelin sheath: The myelin sheath is a fatty layer that wraps around the axon of some neurons. It is produced by glial cells, specifically Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.

Explore the function of the myelin sheath: The primary function of the myelin sheath is to insulate the axon and increase the speed of electrical impulses (action potentials) as they travel along the neuron.

Understand how myelination affects nerve impulse conduction: Myelination allows for saltatory conduction, where the nerve impulse jumps from one node of Ranvier (gaps in the myelin sheath) to the next, significantly increasing conduction speed.

Differentiate the functions: Compare the function of the myelin sheath with other options provided, such as producing neurotransmitters, providing nutrients, and generating action potentials, to identify the correct function related to nerve impulse conduction.