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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

Which of the following best describes a trigger in a feedback loop?

A process that returns the system to its original state

A signal that terminates the feedback loop

A mechanism that amplifies the initial change

A stimulus that initiates a response to maintain homeostasis

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Verified step by step guidance

Understand the concept of a feedback loop in physiology, which is a system used by the body to maintain homeostasis by regulating internal conditions.

Identify the components of a feedback loop: stimulus, receptor, control center, effector, and response.

Recognize that a 'trigger' in a feedback loop is synonymous with a 'stimulus,' which is the initial change that is detected by the receptor.

Clarify that the role of the stimulus is to initiate a response that will help the body return to a state of balance or homeostasis.

Conclude that the correct description of a trigger in a feedback loop is 'A stimulus that initiates a response to maintain homeostasis,' as it sets off the chain of events in the feedback loop.