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

Sensory Receptor Classification by Modality

Anatomy & Physiology

13. The Peripheral Nervous System

Sensory Receptor Classification by Modality

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Problem 15

Textbook Question

detect the degree to which a muscle is stretched, whereasdetect the force of a muscle contraction.

Verified step by step guidance

Step 1: Understand the two types of sensory receptors involved in muscle function. Muscle spindles are specialized sensory receptors that detect the degree of stretch in a muscle, while Golgi tendon organs are sensory receptors that detect the force or tension generated during muscle contraction.

Step 2: Recall the anatomical location of these receptors. Muscle spindles are located within the muscle fibers themselves, specifically in the intrafusal fibers, whereas Golgi tendon organs are located at the junction between the muscle and its tendon.

Step 3: Consider the physiological role of each receptor. Muscle spindles provide feedback to the central nervous system about muscle length and changes in length, helping to regulate muscle tone and prevent overstretching. Golgi tendon organs monitor tension to prevent excessive force that could damage the muscle or tendon.

Step 4: Match the descriptions in the problem to the correct receptor. The phrase 'detect the degree to which a muscle is stretched' corresponds to muscle spindles, and the phrase 'detect the force of a muscle contraction' corresponds to Golgi tendon organs.

Step 5: Conclude that the correct answer involves identifying muscle spindles as the receptors for stretch and Golgi tendon organs as the receptors for force detection.

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Key Concepts

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

Muscle Spindles

Muscle spindles are sensory receptors located within the belly of muscles. They detect changes in muscle length and the rate of that change, providing the central nervous system with information about muscle stretch. This feedback is crucial for maintaining posture and coordinating movement.

Golgi Tendon Organs

Golgi tendon organs are proprioceptive sensory receptors located at the junction of muscles and tendons. They monitor the tension or force generated by muscle contractions, helping to prevent muscle damage from excessive force. This feedback allows for the regulation of muscle activity and contributes to overall motor control.

Proprioception

Proprioception is the body's ability to sense its position and movement in space. It involves the integration of sensory information from muscle spindles, Golgi tendon organs, and other receptors to provide awareness of body posture and movement. This sense is essential for coordination, balance, and executing complex motor tasks.