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

4. Tissues & Histology

Introduction to Epithelial Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Epithelial Tissue

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Multiple Choice

Which of the following is true about epithelial tissue?

Epithelial tissue is composed of loosely packed cells with large intercellular spaces.

Epithelial tissue is avascular and relies on diffusion for nutrients.

Epithelial tissue is primarily responsible for contraction and movement.

Epithelial tissue contains a large amount of extracellular matrix.

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Verified step by step guidance

Understand the basic characteristics of epithelial tissue: Epithelial tissue is composed of tightly packed cells with minimal intercellular spaces, forming continuous sheets that cover surfaces and line cavities.

Recognize that epithelial tissue is avascular, meaning it does not have its own blood supply. Instead, it relies on diffusion from underlying connective tissues to receive nutrients and remove waste.

Differentiate epithelial tissue from other tissue types: Unlike muscle tissue, which is responsible for contraction and movement, epithelial tissue primarily serves as a protective barrier and is involved in absorption, secretion, and sensation.

Identify the role of the extracellular matrix in epithelial tissue: Epithelial tissue contains very little extracellular matrix compared to connective tissue, which has a large amount of extracellular matrix providing structural support.

Conclude that the statement 'Epithelial tissue is avascular and relies on diffusion for nutrients' is true, as it accurately describes a key characteristic of epithelial tissue.