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

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Feedback Loops

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Multiple Choice

When your body sweats to cool down after becoming overheated, is this response an example of positive or negative feedback?

Negative feedback

Positive feedback

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Verified step by step guidance

Understand the concept of feedback mechanisms: Feedback mechanisms are processes that help maintain homeostasis in the body. They are categorized into two types: positive feedback and negative feedback.

Define negative feedback: Negative feedback occurs when the body detects a change and initiates a response to counteract or reverse that change, bringing the system back to its normal state. This is the most common type of feedback in maintaining homeostasis.

Define positive feedback: Positive feedback amplifies or increases the change detected by the body, moving the system further away from its normal state. This type of feedback is less common and is typically used in processes like childbirth or blood clotting.

Analyze the scenario: Sweating to cool down after becoming overheated is a response where the body detects an increase in temperature and initiates a mechanism (sweating) to lower the temperature back to normal. This is an example of reversing the change, which aligns with the definition of negative feedback.

Conclude the reasoning: Based on the definitions and analysis, sweating to cool down is an example of negative feedback because it works to restore the body's temperature to its normal range.