What does apical mean?

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Prepare for the Epithelial Tissue Structure and Function Test. Explore with multiple choice questions and explanations. Master epithelial tissue concepts for your exam success!

Multiple Choice

What does apical mean?

Explanation:
Apical means the surface of an epithelial cell that faces the lumen or outside environment—the free surface. This side is the exposed, outward-facing part of the cell, and it often carries special structures like microvilli or cilia to assist absorption and movement. It is opposite the basal surface, which rests on the basement membrane and interfaces with underlying tissue. So, apical refers to the side facing the free surface, while the basal surface faces the basal lamina/basement membrane and the lateral surfaces contact neighboring cells.

Apical means the surface of an epithelial cell that faces the lumen or outside environment—the free surface. This side is the exposed, outward-facing part of the cell, and it often carries special structures like microvilli or cilia to assist absorption and movement. It is opposite the basal surface, which rests on the basement membrane and interfaces with underlying tissue. So, apical refers to the side facing the free surface, while the basal surface faces the basal lamina/basement membrane and the lateral surfaces contact neighboring cells.

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