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: Positive Feedback

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Feedback Loops: Positive Feedback

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Multiple Choice

Uterine contractions during childbirth are an example of which type of feedback loop?

Inhibitory feedback loop

Neutral feedback loop

Positive feedback loop

Negative feedback loop

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Verified step by step guidance

Understand the concept of feedback loops: Feedback loops are biological mechanisms whereby the body maintains homeostasis. They can be either positive or negative.

Identify the characteristics of a positive feedback loop: In a positive feedback loop, the response enhances or amplifies the initial stimulus, leading to an increased response.

Consider the process of uterine contractions during childbirth: During labor, uterine contractions push the baby towards the cervix, which in turn stimulates the release of oxytocin.

Analyze the role of oxytocin: Oxytocin further stimulates uterine contractions, creating a cycle that intensifies until childbirth is complete.

Conclude that uterine contractions during childbirth are an example of a positive feedback loop, as the process amplifies the initial stimulus (contractions) to achieve a specific outcome (childbirth).