Table of contents

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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

13. The Peripheral Nervous System

Introduction to Sensory Receptors

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to Sensory Receptors

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Multiple Choice

What information does the brain use to determine the intensity of a stimulus?

The location of the stimulus on the body

The frequency of action potentials

The type of sensory receptor activated

The duration of the stimulus

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Verified step by step guidance

Understand that the brain interprets the intensity of a stimulus primarily through the frequency of action potentials. This means that more frequent action potentials indicate a stronger stimulus.

Recognize that the location of the stimulus on the body helps the brain determine where the stimulus is occurring, but not its intensity.

Identify that the type of sensory receptor activated provides information about the nature of the stimulus (e.g., touch, pain, temperature), but not directly about its intensity.

Consider the duration of the stimulus, which can affect the perception of intensity over time, but the immediate intensity is more directly related to the frequency of action potentials.

Conclude that while all these factors contribute to the brain's understanding of a stimulus, the frequency of action potentials is the key factor in determining its intensity.