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

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

Which of the following is an example of a negative feedback loop in the human body?

Blood clotting process

Action potential propagation in neurons

Release of oxytocin during childbirth

Regulation of blood glucose levels by insulin

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Verified step by step guidance

Understand the concept of a negative feedback loop: It is a process that counteracts a change in a system, bringing it back to a set point or normal range. This is crucial for maintaining homeostasis in the body.

Identify the role of insulin in blood glucose regulation: Insulin is a hormone produced by the pancreas that helps lower blood glucose levels when they are high, by facilitating the uptake of glucose into cells.

Recognize how the regulation of blood glucose levels by insulin fits the negative feedback model: When blood glucose levels rise after eating, the pancreas releases insulin. This action helps cells absorb glucose, reducing blood glucose levels back to normal.

Compare with other examples: Blood clotting and oxytocin release are positive feedback loops, where the response enhances the original stimulus. Action potential propagation is not a feedback loop but a signal transmission process.

Conclude that the regulation of blood glucose levels by insulin is a classic example of a negative feedback loop, as it works to restore balance by reducing high blood glucose levels.