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 of the following are two key characteristics of simple columnar epithelium?

Cells are flat and arranged in multiple layers

Cells are tall and arranged in a single layer

Cells are irregularly shaped and lack a basement membrane

Cells are cube-shaped and have multiple nuclei

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Verified step by step guidance

Understand the structure and function of simple columnar epithelium: Simple columnar epithelium consists of tall, column-like cells arranged in a single layer. These cells are specialized for absorption and secretion, commonly found in the digestive tract lining.

Eliminate incorrect options based on the characteristics of simple columnar epithelium: Cells are not flat (as in squamous epithelium), nor are they arranged in multiple layers (as in stratified epithelium). Therefore, the first option is incorrect.

Evaluate the second option: 'Cells are tall and arranged in a single layer.' This matches the description of simple columnar epithelium, as the cells are elongated and form a single layer.

Analyze the third option: 'Cells are irregularly shaped and lack a basement membrane.' This is incorrect because all epithelial tissues, including simple columnar epithelium, have a basement membrane that anchors the cells.

Review the fourth option: 'Cells are cube-shaped and have multiple nuclei.' This describes cuboidal epithelium, not columnar epithelium. Simple columnar epithelium cells are tall and typically have a single nucleus located near the base of the cell.