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

Goosebumps are caused by the contraction of which type of muscle in the skin?

Arrector pili muscles

Skeletal muscles

Cardiac muscles

Smooth muscles of the dermis

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Verified step by step guidance

Understand that goosebumps are a physiological response to cold or emotional stimuli, causing the hair on the skin to stand up.

Identify the type of muscle responsible for this response. Goosebumps are caused by the contraction of small muscles attached to hair follicles.

Recognize that these muscles are known as arrector pili muscles, which are smooth muscles located in the dermis layer of the skin.

Differentiate between the types of muscles: skeletal muscles are voluntary and attached to bones, cardiac muscles are found in the heart, and smooth muscles are involuntary and found in various organs, including the skin.

Conclude that the arrector pili muscles, being smooth muscles, are responsible for the formation of goosebumps by contracting and pulling the hair follicles upright.