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

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Multiple Choice

Which of the following is a component of the integumentary system that secretes pheromones?

Apocrine sweat glands

Sebaceous glands

Eccrine sweat glands

Hair follicles

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Verified step by step guidance

Understand the integumentary system: The integumentary system includes the skin and its associated structures such as sweat glands, sebaceous glands, hair follicles, and nails. Its primary functions include protection, thermoregulation, sensation, and secretion.

Learn about sweat glands: Sweat glands are divided into two types—eccrine and apocrine. Eccrine sweat glands are responsible for thermoregulation by secreting sweat directly onto the skin surface, while apocrine sweat glands are associated with hair follicles and are found in specific areas like the armpits and groin.

Understand apocrine sweat glands: Apocrine sweat glands secrete a thicker, milky fluid that contains proteins and lipids. These secretions can be broken down by bacteria on the skin, producing body odor. Apocrine glands are also known to secrete pheromones, which are chemical signals that can influence social and reproductive behaviors.

Differentiate other options: Sebaceous glands secrete sebum, an oily substance that lubricates the skin and hair, but they do not secrete pheromones. Eccrine sweat glands primarily function in thermoregulation and do not produce pheromones. Hair follicles are structures that produce hair and are associated with sebaceous and apocrine glands but do not directly secrete pheromones.

Conclude the correct answer: Based on the function and secretion of pheromones, apocrine sweat glands are the correct answer as they are specialized for this purpose.