Welcome to HistologyOLM, the on-line laboratory manual for mammalian histology. HistologyOLM is designed to serve as a guide to the microscopic examination of mammalian tissues. This manual is built for use in an undergraduate mammalian histology course. As such, it lacks the focused clinical connections that might be required by medical, veterinary, and dental school courses.

HistologyOLM 4.0 behaves properly in Mozilla Firefox® 17.0 or later, Google Chrome® 31 or later and in Microsoft Internet Explorer® 8.0 or later. It has not been tested in other browsers. If you use Firefox, Chrome or Internet Explorer, it is highly recommended you update these browsers to their latest versions.