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

Nervous Tissue: The Neuron

Anatomy & Physiology

4. Tissues & Histology

Nervous Tissue: The Neuron

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Multiple Choice

What part of the neuron receives input in the form of chemical stimuli?

Dendrites

Myelin sheath

Node of Ranvier

Axon

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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: dendrites, a cell body (soma), an axon, and axon terminals.

Identify the function of dendrites: Dendrites are tree-like extensions at the beginning of a neuron that help increase the surface area of the cell body. They are responsible for receiving chemical signals from other neurons.

Differentiate between the parts of a neuron: The axon is a long, slender projection that conducts electrical impulses away from the neuron's cell body. The myelin sheath is a fatty layer that covers the axon, helping to speed up the transmission of electrical signals. The Node of Ranvier is a gap in the myelin sheath that facilitates rapid conduction of nerve impulses.

Focus on the role of dendrites in receiving input: Dendrites contain receptors that are sensitive to neurotransmitters released by other neurons. When these chemical signals bind to the receptors, they generate electrical changes in the neuron.

Conclude that dendrites are the part of the neuron that receives input in the form of chemical stimuli, distinguishing them from other parts like the axon or myelin sheath, which have different functions.