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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is the primary purpose of positive feedback in physiological processes?

To decrease the intensity of a stimulus

To amplify a response until a specific outcome is achieved

To maintain homeostasis by counteracting changes

To regulate body temperature within a narrow range

Previous problemNext problem

Verified step by step guidance

Understand the concept of feedback mechanisms in physiology: Feedback mechanisms are processes that help maintain homeostasis in the body by responding to changes in the internal environment.

Differentiate between positive and negative feedback: Negative feedback works to counteract changes and bring the system back to its set point, while positive feedback amplifies changes and drives the system away from its set point until a specific outcome is achieved.

Identify examples of positive feedback in the body: Common examples include the process of childbirth, where the release of oxytocin increases contractions, and blood clotting, where the presence of clotting factors accelerates the formation of a clot.

Analyze the role of positive feedback in physiological processes: Positive feedback is typically used in situations where a rapid or decisive outcome is necessary, such as in childbirth or blood clotting.

Conclude the primary purpose of positive feedback: Positive feedback amplifies a response until a specific outcome is achieved, rather than maintaining homeostasis or regulating body temperature.