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 best describes pseudostratified epithelium?

A single layer of cube-shaped cells with centrally located nuclei

A single layer of cells that appears to be multiple layers due to varying cell heights and nuclei positions

Multiple layers of flat cells with nuclei aligned in a single row

Multiple layers of column-shaped cells with all cells touching the basement membrane

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Verified step by step guidance

Understand the term 'pseudostratified epithelium': It refers to a type of epithelial tissue that appears to have multiple layers due to the varying heights of the cells and the positions of their nuclei, but it is actually a single layer of cells.

Analyze the structure of pseudostratified epithelium: The cells are all attached to the basement membrane, which confirms it is a single layer, even though the nuclei are positioned at different levels, giving the illusion of stratification.

Compare the options provided: Eliminate choices that describe multiple layers of cells, as pseudostratified epithelium is not truly stratified.

Focus on the correct description: Identify the option that mentions a single layer of cells with varying heights and nuclei positions, as this matches the definition of pseudostratified epithelium.

Confirm the correct answer: Ensure the selected option aligns with the anatomical and physiological characteristics of pseudostratified epithelium, which is typically found in areas like the respiratory tract.