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 type of epithelial tissue provides the least protection?

Pseudostratified columnar epithelium

Transitional epithelium

Simple squamous epithelium

Stratified squamous epithelium

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Verified step by step guidance

Understand the function of epithelial tissues: Epithelial tissues serve various roles, including protection, absorption, secretion, and filtration. The degree of protection provided depends on the structure and layering of the cells.

Analyze the structure of simple squamous epithelium: Simple squamous epithelium consists of a single layer of flat, thin cells. This structure is optimized for processes like diffusion and filtration, but it offers minimal physical protection due to its thinness.

Compare with other epithelial types: Pseudostratified columnar epithelium appears layered but is not truly stratified, and it often has cilia for specialized functions. Transitional epithelium is designed to stretch and recoil, providing more protection in areas like the bladder. Stratified squamous epithelium has multiple layers, making it highly protective, especially in areas subject to abrasion.

Identify the key characteristic of simple squamous epithelium: Its single-layered, flat structure makes it ideal for areas requiring efficient exchange of substances, such as the alveoli in the lungs or capillary walls, but it is not suited for protective roles.

Conclude that simple squamous epithelium provides the least protection among the listed types due to its thin, single-layered structure, which prioritizes permeability over physical defense.