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 of the following statements about the body's response to heat loss is true?

Metabolic rate decreases to conserve energy.

Sweating increases to help retain body heat.

Vasoconstriction occurs to reduce blood flow to the skin.

Shivering stops to prevent further heat loss.

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Verified step by step guidance

Understand the body's thermoregulatory mechanisms: The body has several ways to respond to changes in temperature to maintain homeostasis, including vasoconstriction, vasodilation, sweating, and shivering.

Identify the role of vasoconstriction: Vasoconstriction is the narrowing of blood vessels, which reduces blood flow to the skin. This helps to conserve body heat by minimizing heat loss through the skin.

Evaluate the statement about metabolic rate: A decrease in metabolic rate would not help in conserving heat. In fact, increasing metabolic rate generates more heat, which is a response to cold environments.

Assess the statement about sweating: Sweating is a mechanism for cooling the body, not retaining heat. Therefore, increased sweating would not be a response to heat loss.

Consider the role of shivering: Shivering is an involuntary response that generates heat through muscle activity. It would not stop to prevent heat loss; rather, it would start to increase heat production in response to cold.