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

5. Integumentary System

Integumentary System: Thermoregulation

Anatomy & Physiology

5. Integumentary System

Integumentary System: Thermoregulation

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Multiple Choice

What happens to the body when high heat molecules leave the skin during thermoregulation?

The body temperature increases as heat is absorbed from the environment.

The blood vessels constrict to retain heat.

The skin becomes more hydrated as water is retained.

The body temperature decreases as heat is lost through evaporation.

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Verified step by step guidance

Understand the concept of thermoregulation: Thermoregulation is the body's process of maintaining its internal temperature within a certain range, even when the surrounding temperature is different.

Identify the mechanism of heat loss: The body loses heat through various mechanisms, including radiation, conduction, convection, and evaporation. In this scenario, evaporation is the key mechanism.

Explain evaporation: Evaporation occurs when sweat on the skin surface turns into vapor, taking heat away from the body. This process helps to cool down the body temperature.

Analyze the effect on blood vessels: During heat loss, blood vessels near the skin surface may dilate (widen) to increase blood flow and promote heat dissipation, contrary to constriction which retains heat.

Conclude the impact on body temperature: As high heat molecules leave the skin through evaporation, the body temperature decreases, helping to prevent overheating.