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

Simple Epithelial Tissues

Anatomy & Physiology

4. Tissues & Histology

Simple Epithelial Tissues

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Multiple Choice

In the image to the right, what feature is the yellow arrow pointing to?

Basement membrane.

Cilia.

Microvilli.

Apical surface.

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Verified step by step guidance

Examine the image closely to identify the structure the yellow arrow is pointing to. Notice the location and characteristics of the structure in relation to the surrounding cells.

Understand the options provided: Basement membrane, Cilia, Microvilli, and Apical surface. Each of these structures has distinct features and locations in epithelial tissue.

The basement membrane is a thin, fibrous, extracellular matrix that separates the epithelium from underlying connective tissue. It is typically located at the base of epithelial cells.

Cilia are hair-like projections on the apical surface of some epithelial cells, involved in movement of substances across the cell surface.

Microvilli are small, finger-like projections on the apical surface of epithelial cells, increasing surface area for absorption. The apical surface is the free surface of epithelial cells facing the lumen or external environment.