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

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

Which of the following characteristics is NOT true about receptive fields?

The size of a receptive field is uniform across all sensory receptors.

Receptive fields are areas where sensory neurons can detect stimuli.

Receptive fields can overlap with each other.

Smaller receptive fields allow for more precise sensory perception.

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Verified step by step guidance

Begin by understanding the concept of a receptive field. A receptive field is the specific area within which a sensory neuron can detect stimuli. This is crucial for sensory perception as it defines the spatial area of sensitivity for a neuron.

Consider the statement about the uniformity of receptive field sizes across all sensory receptors. In reality, receptive field sizes vary depending on the type of sensory receptor and the location in the body. For example, tactile receptors in the fingertips have smaller receptive fields compared to those on the back, allowing for more precise sensory perception in areas requiring fine touch.

Examine the concept of overlapping receptive fields. Sensory neurons often have overlapping receptive fields, which means that a single stimulus can activate multiple neurons. This overlap contributes to the ability to detect stimuli with greater accuracy and detail.

Analyze the relationship between receptive field size and sensory precision. Smaller receptive fields are associated with higher sensory precision because they allow for finer discrimination of stimuli. This is why areas like the fingertips have smaller receptive fields for detailed touch perception.

Conclude by identifying the characteristic that is NOT true about receptive fields. The statement that the size of a receptive field is uniform across all sensory receptors is incorrect, as receptive field sizes vary significantly depending on the receptor type and location.