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

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

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Multiple Choice

Which of the following cell types or structures is NOT found in the epidermis?

Langerhans cells

Melanocytes

Keratinocytes

Goblet cells

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Verified step by step guidance

Step 1: Begin by understanding the structure and function of the epidermis, which is the outermost layer of the skin. It is primarily composed of keratinized stratified squamous epithelium and contains specific cell types that contribute to its function.

Step 2: Review the cell types found in the epidermis: Keratinocytes are the most abundant cells, responsible for producing keratin, a protein that provides strength and waterproofing. Melanocytes produce melanin, which gives skin its pigment and protects against UV radiation. Langerhans cells are immune cells that help detect and fight pathogens.

Step 3: Understand the role of goblet cells. Goblet cells are specialized epithelial cells that secrete mucus and are typically found in mucous membranes, such as the respiratory and digestive tracts, not in the epidermis.

Step 4: Compare the listed cell types and structures to the known components of the epidermis. Identify which cell type does not belong based on its function and location in the body.

Step 5: Conclude that goblet cells are not found in the epidermis because their function and location are specific to mucous membranes, whereas the other cell types listed are integral to the epidermis.