concept

Epithelial Cell

Epithelial cells make up primary tissues throughout the body. There are many arrangements of epithelial cells such as squamous, cuboidal, and columnar that organize as simple, stratified, pseudostratified, and transitional. Epithelial cells form from ectoderm, mesoderm, and endoderm, which explains why epithelia line body cavities and cover most of the body and organ surfaces. Since epithelial cells are prevalent throughout the body, their function changes based on their location. For example, epithelial cells in the skin provide protection, whereas, in the gut, they have secretory and absorptive properties. This article seeks to explain the anatomical characteristics of epithelial cells and their functions as well as describe features that are evident upon histological staining.

Ref:
Kurn H, Daly DT. Histology, Epithelial Cell. 2021 Nov 19. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan–. PMID: 32644489.

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Added on Feb 28, 2023 by Barbara Van De Keer

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