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 Heart2h 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

Proprioceptors

Anatomy & Physiology

13. The Peripheral Nervous System

Proprioceptors

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Multiple Choice

Muscle spindles are involved in which type of reflex?

Tendon reflex.

Withdrawal reflex.

Stretch reflex.

Tension reflex.

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Verified step by step guidance

Understand the role of muscle spindles: Muscle spindles are sensory receptors located within the belly of muscles. They primarily detect changes in the length of the muscle and the rate of that change.

Identify the type of reflex associated with muscle spindles: Muscle spindles are involved in the stretch reflex, which is a muscle contraction in response to stretching within the muscle.

Differentiate between reflex types: The stretch reflex is distinct from other reflexes such as the tendon reflex, withdrawal reflex, and tension reflex. Each of these reflexes involves different sensory receptors and physiological responses.

Explore the mechanism of the stretch reflex: When a muscle is stretched, the muscle spindles are activated, sending signals via afferent nerve fibers to the spinal cord. This results in the activation of motor neurons that cause the muscle to contract, counteracting the stretch.

Consider the physiological importance: The stretch reflex helps maintain muscle tone and posture, and it protects muscles from excessive stretching that could lead to injury.