Anatomy Atlases(tm) : A digital library of anatomy information

Home | About | FAQ | Reviews | Search

Anatomy Atlases: Atlas of Microscopic Anatomy: Section 1 - Cells Atlas of Microscopic Anatomy: Section 7 - Integument

Plate 7.136 Keratinization

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger, Jr., Ph.D.
Peer Review Status: Externally Peer Reviewed

Filiform papilla tongue

 Plate 7.136 Keratinization

Rhesus monkey, 10% formalin, H. & E., 162 x.


This plate shows the cellular changes in the process of keratinization. The stratified squamous epithelium covering a filiform papilla is seen. Note the keratohyalin granules in cells of the zona granulosa. In the more superficial zona pellucida, the cells lose their keratohyalin granules and become flattened and elongated; some lose their nuclei. The cytoplasm of these cells appears homogeneous. In the most superficial zone, the cells become clear and flattened.

The structural changes in keratinization involve aggregation and arrangement of filaments, formation of keratohyalin granules, and loss of cell organelles as a result of the accumulation of these granules. Desquamated cells are continually replaced by new cells that are formed in the germinative basal layer and move toward the surface during the process of keratinization.

Next Page | Previous Page | Section Top | Title Page

Home | About Us | FAQ | Reviews | Contact Us | Search

Anatomy Atlases is curated by Michael P. D'Alessandro, M.D. and Ronald A. Bergman, Ph.D.

Please send us comments by filling out our Comment Form.

All contents copyright © 1995-2018 the Author(s) and Michael P. D'Alessandro, M.D. All rights reserved.

"Anatomy Atlases", the Anatomy Atlases logo, and "A digital library of anatomy information" are all Trademarks of Michael P. D'Alessandro, M.D.

Anatomy Atlases is funded in whole by Michael P. D'Alessandro, M.D. Advertising is not accepted.

Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.

The information contained in Anatomy Atlases is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.