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 best describes an axon in a neuron?

A short, branched structure that receives signals from other neurons

A structure that insulates the neuron and speeds up signal transmission

A long projection that transmits electrical impulses away from the cell body

The part of the neuron that contains the nucleus and organelles

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Verified step by step guidance

Understand the structure of a neuron: Neurons are specialized cells that transmit information throughout the nervous system. They consist of several key parts, including the cell body, dendrites, and axon.

Identify the function of an axon: The axon is a long, slender projection of the neuron that conducts electrical impulses away from the neuron's cell body. This is crucial for transmitting signals over long distances within the body.

Differentiate between axons and other neuron structures: Dendrites are typically short, branched structures that receive signals from other neurons, while the axon is responsible for sending signals away from the cell body.

Consider the role of myelin: Some axons are covered with a myelin sheath, which insulates the axon and increases the speed of signal transmission. This is not a defining feature of all axons but is important for many.

Review the options provided: Compare the descriptions given in the problem to the known characteristics of an axon. The correct description of an axon is 'A long projection that transmits electrical impulses away from the cell body.'