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

Which structure of the integumentary system helps control the loss of body heat?

Blood vessels in the dermis

Sweat glands

Arrector pili muscles

Sebaceous glands

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Verified step by step guidance

Understand the role of the integumentary system in thermoregulation. The integumentary system includes structures such as the skin, sweat glands, blood vessels, and hair follicles, which work together to maintain body temperature.

Analyze the function of blood vessels in the dermis. Blood vessels can dilate (vasodilation) to release heat or constrict (vasoconstriction) to retain heat, playing a key role in controlling heat loss.

Examine the role of sweat glands. Sweat glands produce sweat, which evaporates from the skin surface, removing heat and cooling the body.

Consider the function of arrector pili muscles. These small muscles attached to hair follicles contract to raise hairs (goosebumps), which can trap a layer of air for insulation, but they are less effective in humans compared to other animals.

Evaluate the role of sebaceous glands. Sebaceous glands secrete sebum (oil) to lubricate the skin and hair, but they do not directly contribute to thermoregulation or heat loss control.