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

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

Which of the following is NOT true concerning the use of feedback loops in physiological processes?

Positive feedback loops can lead to a rapid change in the body.

Feedback loops help maintain homeostasis.

Feedback loops involve sensors, control centers, and effectors.

Negative feedback loops amplify changes in the body.

Previous problemNext problem

Verified step by step guidance

Understand the concept of feedback loops: Feedback loops are mechanisms that help regulate physiological processes in the body. They are crucial for maintaining homeostasis, which is the body's ability to maintain a stable internal environment despite external changes.

Differentiate between positive and negative feedback loops: Positive feedback loops enhance or amplify changes; this can lead to a rapid change in the body. An example is the process of childbirth, where the release of oxytocin increases contractions. Negative feedback loops, on the other hand, work to counteract changes, bringing the system back to its set point. An example is the regulation of blood glucose levels.

Identify the components of feedback loops: Feedback loops typically involve three main components: sensors (which detect changes in the environment), control centers (which process the information and determine the response), and effectors (which carry out the response to restore balance).

Evaluate the statements given in the problem: Analyze each statement to determine its accuracy based on your understanding of feedback loops. Positive feedback loops can indeed lead to rapid changes, feedback loops do help maintain homeostasis, and they do involve sensors, control centers, and effectors.

Identify the incorrect statement: The statement 'Negative feedback loops amplify changes in the body' is incorrect because negative feedback loops are designed to reduce or counteract changes, not amplify them. This is the key point that distinguishes negative feedback from positive feedback.