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 would one not expect to find in the dermis of the skin?

Chondrocytes

Fibroblasts

Melanocytes

Keratinocytes

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Verified step by step guidance

Understand the structure and function of the dermis: The dermis is the middle layer of the skin, located beneath the epidermis. It contains connective tissue, blood vessels, nerve endings, and various cell types that contribute to skin strength, elasticity, and repair.

Review the role of fibroblasts: Fibroblasts are common cells in the dermis responsible for producing collagen and extracellular matrix, which provide structural support to the skin.

Examine the role of melanocytes: Melanocytes are pigment-producing cells primarily found in the epidermis, not the dermis. They produce melanin, which gives skin its color and protects against UV radiation.

Analyze the role of keratinocytes: Keratinocytes are the predominant cell type in the epidermis, responsible for producing keratin, a protein that strengthens the skin and forms a protective barrier. They are not typically found in the dermis.

Consider the role of chondrocytes: Chondrocytes are specialized cells found in cartilage, not in the skin. Since the dermis does not contain cartilage, chondrocytes would not be expected to be present in this layer.