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 lines the trachea in the respiratory system?

Pseudostratified ciliated columnar epithelium

Simple squamous epithelium

Stratified squamous epithelium

Transitional epithelium

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Verified step by step guidance

Understand the function of the trachea in the respiratory system: The trachea serves as a passageway for air, and its lining must be specialized to trap debris and move mucus out of the airway.

Review the characteristics of pseudostratified ciliated columnar epithelium: This tissue appears layered (stratified) but is actually a single layer of cells with nuclei at different heights. It contains cilia to move mucus and goblet cells to produce mucus.

Compare the other epithelial tissue types: Simple squamous epithelium is thin and ideal for diffusion, such as in alveoli; stratified squamous epithelium is protective and found in areas subject to abrasion, like the skin; transitional epithelium is specialized for stretching, as in the bladder.

Identify the specific needs of the trachea: The trachea requires a tissue type that can trap and remove particles efficiently, which aligns with the function of pseudostratified ciliated columnar epithelium.

Conclude that pseudostratified ciliated columnar epithelium is the correct answer because it matches the functional requirements of the trachea in the respiratory system.