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

Introduction to the Integumentary System

Anatomy & Physiology

5. Integumentary System

Introduction to the Integumentary System

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which muscles attached to the hair follicles are responsible for causing goose bumps?

Flexor muscles

Levator scapulae muscles

Arrector pili muscles

Orbicularis oculi muscles

Previous problemNext problem

Verified step by step guidance

Understand the context of the question: Goose bumps occur when small muscles attached to hair follicles contract, causing the hair to stand upright. This is typically a response to cold or emotional stimuli.

Identify the specific muscle group responsible for this action. The arrector pili muscles are small, involuntary smooth muscles located in the dermis of the skin and attached to hair follicles.

Clarify why other options are incorrect: Flexor muscles are skeletal muscles responsible for bending joints, levator scapulae muscles are involved in elevating the scapula, and orbicularis oculi muscles control eyelid movement. None of these are related to hair follicles or goose bumps.

Relate the function of arrector pili muscles to the autonomic nervous system. These muscles are controlled by the sympathetic branch of the autonomic nervous system, which triggers their contraction during stress or cold exposure.

Conclude that the correct answer is arrector pili muscles, as they are the only muscles anatomically and functionally linked to hair follicles and the phenomenon of goose bumps.