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

The Epidermis: Cells

Anatomy & Physiology

5. Integumentary System

The Epidermis: Cells

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Multiple Choice

Which of the following cells gives rise to the skin cells in the epidermis?

Langerhans cells

Melanocytes

Merkel cells

Keratinocytes

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Verified step by step guidance

Understand the structure of the epidermis: The epidermis is the outermost layer of the skin, primarily composed of keratinocytes, which are the most abundant cell type in this layer.

Identify the role of keratinocytes: Keratinocytes are responsible for producing keratin, a protein that provides strength and protection to the skin. They originate from the basal layer of the epidermis and move upwards as they mature.

Differentiate between the cell types: Langerhans cells are involved in immune response, melanocytes produce melanin (pigment), and Merkel cells are associated with sensory function. None of these cells are primarily responsible for forming the bulk of the epidermis.

Recognize the process of keratinization: As keratinocytes move from the basal layer to the surface, they undergo a process called keratinization, where they become more flattened and filled with keratin, eventually forming the protective outer layer of the skin.

Conclude that keratinocytes are the cells that give rise to the skin cells in the epidermis, as they are the primary cell type responsible for forming the structure and function of this skin layer.