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 Heart2h 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

The Epidermis: Cells

Anatomy & Physiology

5. Integumentary System

The Epidermis: Cells

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Multiple Choice

Which type of cells play the most important role in preventing skin cancer?

Keratinocytes

Melanocytes

Dendritic cells

Tactile epithelial cells

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Verified step by step guidance

Begin by understanding the function of each cell type mentioned in the problem. This will help you determine which cell plays a crucial role in preventing skin cancer.

Keratinocytes are the most abundant cells in the epidermis and are primarily responsible for forming a protective barrier against environmental damage, but they are not directly involved in preventing skin cancer.

Melanocytes are specialized cells located in the basal layer of the epidermis. They produce melanin, a pigment that absorbs ultraviolet (UV) radiation, thereby protecting skin cells from DNA damage that can lead to cancer.

Dendritic cells, also known as Langerhans cells, are part of the immune system and help detect and fight off pathogens, but their role is more related to immune response rather than direct prevention of skin cancer.

Tactile epithelial cells, or Merkel cells, are involved in the sensation of touch and do not play a significant role in preventing skin cancer. Therefore, melanocytes are the cells that play the most important role in preventing skin cancer by producing melanin to protect against UV radiation.