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

Which type of feedback loop is responsible for maintaining water balance in the human body by regulating antidiuretic hormone (ADH) secretion?

Feedforward loop

Positive feedback loop

Open loop

Negative feedback loop

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Verified step by step guidance

Understand the concept of feedback loops: Feedback loops are mechanisms used by the body to maintain homeostasis. Negative feedback loops work to reverse a change and bring the system back to its set point, while positive feedback loops amplify a change.

Identify the role of antidiuretic hormone (ADH): ADH is secreted by the posterior pituitary gland and helps regulate water balance by increasing water reabsorption in the kidneys, reducing urine output.

Analyze the mechanism of water balance regulation: When the body detects low water levels (high blood osmolarity), ADH secretion increases to conserve water. Conversely, when water levels are high (low blood osmolarity), ADH secretion decreases to allow more water to be excreted.

Determine the type of feedback loop involved: Negative feedback loops are responsible for maintaining homeostasis by counteracting changes. In this case, the secretion of ADH adjusts based on the body's water levels to restore balance, which is characteristic of a negative feedback loop.

Conclude that the correct answer is 'Negative feedback loop' because it is the mechanism responsible for regulating ADH secretion to maintain water balance in the human body.