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

What is the primary role of cilia in the simple columnar epithelium?

To move substances across the epithelial surface

To increase surface area for absorption

To provide structural support

To secrete mucus

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Verified step by step guidance

Understand the structure of simple columnar epithelium: It is a type of epithelial tissue composed of a single layer of tall, closely packed cells. These cells often have microvilli or cilia on their apical surface.

Identify the function of cilia: Cilia are hair-like structures that extend from the surface of certain epithelial cells. They are capable of rhythmic movement.

Consider the role of cilia in moving substances: Cilia beat in a coordinated manner to move substances, such as mucus or particles, across the epithelial surface.

Differentiate between cilia and microvilli: While cilia are involved in movement, microvilli are primarily for increasing surface area to enhance absorption.

Evaluate the options: Given the functions of cilia, the primary role in simple columnar epithelium is to move substances across the epithelial surface, distinguishing it from roles like absorption, structural support, or secretion.