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

Reflex Arcs

Anatomy & Physiology

13. The Peripheral Nervous System

Reflex Arcs

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Why is reciprocal inhibition an important part of the stretch reflex?

It amplifies the contraction of the stretched muscle.

It slows down the stretch reflex.

It enhances proprioception as the reflex occurs.

It allows for smooth movement of extensor and flexor muscles.

Previous problemNext problem

Verified step by step guidance

Understand the concept of reciprocal inhibition: It is a process where the contraction of one muscle (agonist) is accompanied by the relaxation of its opposing muscle (antagonist).

Recognize the role of the stretch reflex: This reflex helps maintain muscle tone and posture by causing a muscle to contract in response to being stretched.

Identify the importance of reciprocal inhibition in the stretch reflex: When a muscle is stretched and the stretch reflex is activated, reciprocal inhibition ensures that the opposing muscle relaxes, allowing for smooth and coordinated movement.

Consider the impact on movement: Without reciprocal inhibition, both the agonist and antagonist muscles might contract simultaneously, leading to stiffness or lack of fluidity in movement.

Conclude why reciprocal inhibition is crucial: It allows for the efficient and smooth movement of muscles, particularly extensor and flexor muscles, by preventing opposing muscles from contracting at the same time.