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

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following is an example of a negative feedback mechanism in homeostasis?

Blood clotting process

Regulation of blood glucose levels by insulin

Action potential propagation in neurons

Release of oxytocin during childbirth

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Verified step by step guidance

Understand the concept of homeostasis: Homeostasis is the body's ability to maintain a stable internal environment despite changes in external conditions.

Learn about feedback mechanisms: Feedback mechanisms are processes that use the conditions of one component to regulate the function of the other. There are two types: negative and positive feedback.

Define negative feedback: Negative feedback mechanisms work to reduce the output or activity of any organ or system back to its normal range of functioning. It counteracts changes, bringing the system back to its set point.

Identify examples of negative feedback: The regulation of blood glucose levels by insulin is a classic example of negative feedback. When blood glucose levels rise, insulin is released to lower the glucose level back to normal.

Differentiate from positive feedback: Positive feedback mechanisms enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. An example is the release of oxytocin during childbirth, which intensifies the contractions.