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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Problem 10

Textbook Question

Tactile nerve endings, tactile corpuscles, bulbous corpuscles, and lamellated corpuscles are all types of:
a. Nociceptors
b. Mechanoreceptors
c. Photoreceptors
d. Chemoreceptors

Verified step by step guidance

Step 1: Begin by understanding the definitions of the receptor types listed in the answer choices. Nociceptors detect pain, mechanoreceptors detect mechanical stimuli like pressure or vibration, photoreceptors detect light, and chemoreceptors detect chemical changes.

Step 2: Review the function of tactile nerve endings, tactile corpuscles, bulbous corpuscles, and lamellated corpuscles. These structures are specialized sensory receptors found in the skin and other tissues that respond to mechanical stimuli such as touch, pressure, and vibration.

Step 3: Match the function of these sensory structures to the receptor type that corresponds to mechanical stimuli. Recall that mechanoreceptors are responsible for detecting mechanical changes in the environment.

Step 4: Eliminate the incorrect options based on the definitions and functions. For example, tactile nerve endings and corpuscles do not detect pain (nociceptors), light (photoreceptors), or chemical changes (chemoreceptors).

Step 5: Conclude that tactile nerve endings, tactile corpuscles, bulbous corpuscles, and lamellated corpuscles are all types of mechanoreceptors, as they respond to mechanical stimuli like touch, pressure, and vibration.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mechanoreceptors

Mechanoreceptors are specialized sensory receptors that respond to mechanical pressure or distortion. They play a crucial role in the sensation of touch, vibration, and proprioception. The types mentioned in the question, such as tactile corpuscles and bulbous corpuscles, are all mechanoreceptors that detect different forms of mechanical stimuli.

Tactile Nerve Endings

Tactile nerve endings, also known as free nerve endings, are sensory receptors located in the skin that respond to light touch. They are responsible for detecting fine tactile sensations and are distributed throughout the skin, providing essential information about the external environment.

Corpuscles

Corpuscles, such as tactile corpuscles (Meissner's corpuscles) and lamellated corpuscles (Pacinian corpuscles), are encapsulated mechanoreceptors that enhance sensitivity to specific types of mechanical stimuli. Tactile corpuscles are sensitive to light touch and vibration, while lamellated corpuscles respond to deep pressure and high-frequency vibrations, illustrating the diversity of mechanoreceptive functions.

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