Southern Illinois University
How to use this resource.



esophageal mucosa Welcome to Histology at SIU

This website summarizes the basics of tissue organization in the human body, in extensively hyper-linked notes and images.  

About this resource (pdf)

This website is maintained by David G. King, currently Associate Professor Emeritus at Southern Illinois University Carbondale, based on 35 years' experience teaching introductory histology.

Dedication:  Textbooks and websites (including this one) commonly present information ex cathedra, without historical context, as if it had always existed.  But our knowledge of tissues has emerged incrementally over hundreds of years.  This website is dedicated to all the researchers, technicians, artists, and teachers who have invented protocols, observed specimens, published discoveries, and shared their understanding.  A few of their contributions are acknowledged in this website on the eponyms and historical notes page.

Using this histology resource

Accessibility:  "Alternative text" for images (i.e., text displayed in place of images) is seldom provided.  Most images in this website are micrographs illustrating the accompanying text.  That text can be read without regard to the images, except to note that most small "thumbnail" images are themselves links to pages with enlarged images, whose accompanying text in turn describes details within those enlargments.  "Alternative text" could do little more than duplicate that accompanying text.

Questions, comments, or error notes are welcome, sent to the email address at the bottom of each page

Contents Image Index

Von Ebner's 1873 drawing of tissues in the tongue.

tissues skin inflammation blood
blood vessels lung kidney kidney
neuron eye muscle bone
ovary testis stomach liver
print resources  /  access to literature  /  Image Index

A few external resources

  • Zoomified Virtual Histology offers many tissues for virtual microscopic examination (at Loyola University Medical Education Network LUMEN). 
  • Webpath, hosted by The University of Utah Eccles Health Sciences Library, is a vast resource of materials related to pathology, including many micrographs of normal and pathological specimens.
  • University of Michigan Virtual Slidebox, a large collection of pathology specimens for examination by virtual microscopy.
  • Virtual Pathology at the University of Leeds, searchable collection of pathology specimens for examination by virtual microscopy.
  • Histology Guide, a collection of slides for virtual microscopy, with extensive supporting materials (and associated print textbook and atlas).  About this website.
  • The Pathology Guy:  Ed "the Pathguy" Friedlander offers an extensive array of pathology-related resources, including introductory histology.
  • Molecular Biology of the Cell, 4th ed., online textbook by Bruce Alberts, et al., © 2002.
    (This is "the classic in-depth text reference in cell biology," recommended as a refresher or solid introduction to topics in cell biology). 


Portrait of web-page author David King (60 years old in this 2008 picture), with short, pale-gray hair and beard, wearing wire-frame eyeglasses, white shirt, and tie. Questions, comments, or error notes:

SIUC / School of Medicine / Anatomy / David King
Last updated:  15 January 2023