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

16. The Endocrine System

Introduction to the Endocrine System

Anatomy & Physiology

16. The Endocrine System

Introduction to the Endocrine System

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Multiple Choice

Which of the following is not a mechanism involved in maintaining homeostasis in the human body?

Positive feedback loops

Random fluctuations

Feedforward regulation

Negative feedback loops

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Verified step by step guidance

Understand the concept of homeostasis: Homeostasis is the process by which the human body maintains a stable internal environment despite changes in external conditions.

Identify the mechanisms involved in homeostasis: The primary mechanisms include negative feedback loops, positive feedback loops, and feedforward regulation.

Explain negative feedback loops: These are processes that counteract changes in the body to return to a set point. For example, if body temperature rises, mechanisms are activated to cool it down.

Explain positive feedback loops: These amplify changes rather than counteract them. They are less common in homeostasis but occur in processes like childbirth, where contractions increase in intensity.

Explain feedforward regulation: This anticipates changes in the body and prepares it for future events, such as increasing heart rate before exercise. Random fluctuations, however, are not a controlled mechanism and do not contribute to maintaining homeostasis.