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Embryo Images Normal and Abnormal Mammalian Development is a tutorial that uses scanning electron micrographs (SEMs) as the primary resource to teach mammalian embryology. The 3-D like quality of the micrographs coupled with selected line drawings and minimal text allow relatively easy understanding of the complex morphological changes that occur in utero. Because early human embryos are not readily available and because embryogenesis is very similar across mammalian species, the majority of micrographs that are utilized in this tutorial are of mouse embryos. The remainder are human.

     This tutorial was developed by Drs. Kathleen K. Sulik and Peter R. Bream Jr. with the assistance of Mr. Tim Poe and Ms. Kiran Bindra. Financial support has been provided by the Greenwood Genetic Center, Greenwood, SC and the University of North Carolina at Chapel Hill. The SEMs used in this tutorial are from the K.K. Sulik collection. The line drawings have been used with permission from Lippincott Williams & Wilkins and are from the 6th and 7th editions of Langman's Medical Embryology by T.W. Sadler. These drawings may not be reproduced without the permission of the publisher. Please email your questions and comments to the Educational Technology Group.




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The Health Education Assets Library (HEAL) is a collection of over 22,000 freely available digital materials for health sciences education. The collection is now housed at the University of Utah J. Willard Marriott Digital Library. Browse or search the collection by clicking one of the link on the site.


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