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 about negative feedback inhibition?

Negative feedback inhibition reduces the output or activity of a system to return to a set point.

Negative feedback inhibition is primarily involved in the process of childbirth.

Negative feedback inhibition amplifies the initial stimulus.

Negative feedback inhibition is a rare mechanism in biological systems.

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Verified step by step guidance

Understand the concept of negative feedback inhibition: It is a regulatory mechanism in which a change in a physiological variable triggers a response that counteracts the initial change, helping to maintain homeostasis.

Identify the role of negative feedback in biological systems: It is a common mechanism used to maintain stability by reducing the output or activity of a system to return to a set point.

Evaluate the statement about negative feedback in childbirth: Childbirth is primarily regulated by positive feedback, not negative feedback, as the process involves amplifying the initial stimulus (e.g., contractions).

Consider the statement about amplification of the initial stimulus: Negative feedback does not amplify the initial stimulus; instead, it works to diminish or counteract it.

Assess the rarity of negative feedback mechanisms: Negative feedback is not rare; it is a prevalent and essential mechanism in biological systems for maintaining homeostasis.