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 is characterized by a single layer of flat cells lining the air sacs of the lungs?

Transitional epithelium

Simple squamous epithelium

Simple cuboidal epithelium

Stratified squamous epithelium

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Verified step by step guidance

Understand the function of epithelial tissues: Epithelial tissues are specialized for protection, secretion, absorption, and filtration. The type of epithelial tissue is determined by its structure and function.

Identify the characteristics of simple squamous epithelium: This tissue consists of a single layer of flat cells and is specialized for diffusion and filtration due to its thin structure. It is commonly found lining areas where rapid exchange of substances occurs, such as the air sacs (alveoli) of the lungs.

Compare the other options: Transitional epithelium is found in areas like the bladder and is specialized for stretching. Simple cuboidal epithelium consists of cube-shaped cells and is involved in secretion and absorption, often found in glands and kidney tubules. Stratified squamous epithelium consists of multiple layers of cells and is specialized for protection, found in areas like the skin and esophagus.

Relate the structure to the function in the lungs: The air sacs of the lungs (alveoli) require a thin barrier to facilitate efficient gas exchange (oxygen and carbon dioxide). Simple squamous epithelium is ideal for this function due to its single layer of flat cells.

Conclude that the correct answer is simple squamous epithelium based on its structure and function, which aligns with the requirements of the air sacs in the lungs.