Basic Histology -- Columnar Epithelium with Mucin Vacuoles Next Home Back

Mucin is composed primarily of carbohydrate. This is chains of carbon with lots of hydroxyls on the sides.

The purpose of mucin is to mix easily with water in any concentration, and to be slippery. Think about how the molecular structure makes this possible.

Mucin stains pale pink, because it has a little protein in it.

This epithelium is composed of tall columnar cells with mucin vacuoles at the apices.

With your study partners, find:

Hotshots: The thin pink bar on the apices of the cells is the brush border, microvilli.


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Kansas City University of Medicine and Biosciences