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

1. Introduction to Anatomy & Physiology

Feedback Loops: Negative Feedback

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Feedback Loops: Negative Feedback

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Multiple Choice

In a negative feedback loop, how does the effector restore homeostasis?

By reversing the direction of the initial change

By maintaining the initial stimulus

By ignoring the initial change

By amplifying the initial stimulus

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Verified step by step guidance

Understand the concept of homeostasis: Homeostasis is the body's ability to maintain a stable internal environment despite changes in external conditions. It involves various physiological processes that balance the body's systems.

Learn about negative feedback loops: Negative feedback loops are mechanisms that help maintain homeostasis by counteracting changes in the body. When a change occurs, the loop works to reverse that change and bring the system back to its set point.

Identify the components of a negative feedback loop: A negative feedback loop typically involves a sensor, control center, and effector. The sensor detects changes in the environment, the control center processes this information, and the effector acts to restore balance.

Focus on the role of the effector: The effector is responsible for reversing the direction of the initial change. It acts to counteract the stimulus that disrupted homeostasis, thereby restoring the system to its normal state.

Apply this understanding to the problem: In the context of the problem, the effector restores homeostasis by reversing the direction of the initial change, not by maintaining, ignoring, or amplifying the stimulus.