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

Which of the following statements is true regarding negative feedback mechanisms?

Negative feedback mechanisms work to maintain homeostasis by reversing a change.

Negative feedback mechanisms are less common than positive feedback mechanisms in the body.

Negative feedback mechanisms amplify changes in the body.

Negative feedback mechanisms are primarily involved in the process of childbirth.

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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.

Define negative feedback mechanisms: Negative feedback mechanisms are processes that counteract changes in the body to maintain homeostasis. They work by reversing a change to bring the system back to its set point.

Compare with positive feedback mechanisms: Positive feedback mechanisms amplify changes and are less common in the body. They are typically involved in processes that need a definitive endpoint, such as childbirth.

Evaluate the statements: The statement 'Negative feedback mechanisms work to maintain homeostasis by reversing a change' is true because it accurately describes the role of negative feedback in maintaining stability.

Identify the incorrect statements: The other statements are incorrect because negative feedback mechanisms are more common than positive feedback mechanisms, they do not amplify changes, and they are not primarily involved in childbirth, which is a positive feedback process.