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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which type of epithelial tissue is most commonly found lining the air sacs (alveoli) of the lungs?

Stratified squamous epithelium

Transitional epithelium

Simple columnar epithelium

Simple squamous epithelium

Previous problemNext problem

Verified step by step guidance

Understand the function of the air sacs (alveoli) in the lungs: They are responsible for gas exchange, allowing oxygen to enter the blood and carbon dioxide to leave the blood. This requires a thin and permeable tissue for efficient diffusion.

Review the characteristics of epithelial tissue types: Stratified squamous epithelium is thick and protective, transitional epithelium is specialized for stretching, and simple columnar epithelium is involved in absorption and secretion but is thicker than simple squamous epithelium.

Identify the properties of simple squamous epithelium: It is a single layer of flat cells, making it ideal for diffusion and filtration processes due to its thinness and permeability.

Relate the structure of simple squamous epithelium to its function in the alveoli: The thin layer minimizes the distance for gas exchange, facilitating efficient oxygen and carbon dioxide diffusion.

Conclude that simple squamous epithelium is the most suitable tissue for lining the alveoli based on its structural and functional characteristics.