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The SecondLook™ Histology Series

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The SecondLookTM Histology mobile application for the iPad, the iPhone and Android devices is a study aid that provides a series of histology slides for users to self-test their level of knowledge and ability to recognize histological structures. The slides in the Michigan Histology SecondLookTM application feature high quality images from the University of Michigan Medical School's Histology and Virtual Microscopy collection ( One SecondLookTM Histology application is free to download and comes with one slide deck (Connective Tissue). Additional slide decks can be purchased either as six separate organ-system bundle apps (Basic Tissues; Nervous System and Sensory Organs; Cardiovascular and Lymphatic System; Musculoskeletal System; Gastrointestinal Tract; Urinary, Endocrine and Reproductive Systems) or as a complete app covering all major human tissues and organs. By taking a "Second Look" at these slides, users are able to review, self-evaluate, and test their knowledge of histology in order to be better prepared for examinations.

SecondLook™ Needs Your Support:

Please support the SecondLook™ initiative with a donation to our Michigan Medicine SecondLook™ Donation Champaign. Your donation will enable us to update all existing SecondLook™ resources and to transform them into completely free Progressive Web Applications (PWA), including the SecondLook™ Histology apps. It will also benefit the publication of several new topics (Hematology, Pathogen ID, and Gross Anatomy). Any size contribution is welcomed and will help us to provide these popular review tools to students at the University of Michigan and to many more worldwide.

About the Author:

Michael Hortsch, Ph.D. is Professor in the Departments of Cell and Developmental Biology and of Learning Health Sciences at the University of Michigan Medical School where he has been teaching medical and dental histology since 1991. He has received many top teaching awards at his home institution, including a Kaiser Permanent Award for Excellence in Pre-clinical Teaching and a Provost's Teaching Innovation Prize for the SecondLookTM mobile apps. Dr. Hortsch is also investigating how and why novel electronic teaching resources support or sometimes interfere with effective student learning.

App content and Download Options from the iTunes Store and the Google Play Store:

Histology Lite Icon

Free Download of the Histology Lite - SecondLookTM app from the iTunes or the Google Play Store.

Histology Icon

Purchase all 27 sets as the Histology Complete - SecondLookTM app from the iTunes or the Google Play Store

Basic Tissues Icon

Basic Tissues:

  • Cell Biology

  • Epithelia

  • Glands

  • Connective Tissue

  • Muscle

  • Peripheral Nervous System

New Version 3 Features (currently in the SecondLookTM Histology Lite and Complete Apps):

• Minor content updates

• Revised interface that will make navigating the app easier

• Select and combine different topics into a custom-made review session

• Swipe navigation between slide

• App performance improvements


A sample "Histology Lite - SecondLookTM application is available for free. All 27 sets can be purchased as a single app for $19.99 and the Basic Tissue app containing 6 sets for $5.99. All proceeds go to the University of Michigan and some portion is supporting the creation of new and free SecondLook™ tools.


The Michigan Histology SecondLookTM series consists of 27 slide sets, which cover all major human tissues and organs. They can either be purchased as 6 organ-system bundle apps or as a complete app featuring all 27 sets. Users have the options of reviewing the slides in either random or sequential order and to combine different sets into a customized review session.

The slides in the Histology SecondLookTM applications include high quality images from the University of Michigan Medical School's Histology and Virtual Microscopy collection.

The slides also include detailed medical illustrations that test important histological concepts.


Medical, dental, nursing, and other health sciences students, and lab professionals. This application was designed with learners in mind, who want to self-evaluate and review their knowledge of human histology in preparation for quizzes or exams.


Here's what what iTunes Store and Google Play customers say about the SecondLookTM Histology app:

"This is a great app for reviewing basic histology. Not only is it detailed and very comprehensive, it is also a resource that makes extremely efficient use of my time. Both the EM and light microscope images are amazing and very instructive. I can’t wait to using this app for my histology classes"

"This is a wonderful app!! It is easy to use and a great resource and study aid. It has helped me tremendously and I would highly recommend it to anyone taking a Histology course! :-)"

"This is a great application with high quality digital microscopy pictures. It allows you to test yourself in histology everywhere through quizzes with the possibility to see the correct answer. I strongly recommend it to all the Medical Sciences students."

"Nice to see this app, makes me wish this was available to graduate students in the 70s🤓"

"La página es una excelente obra para la enseñanza en él área de la histologias (The page is an excellent work for education in the area of histology)"


    • iOS: Requires iOS 9.0 or later, and is compatible with iPhone and iPad.

    • Android: Requires Android operating system 5.0 (Lollipop) or higher and is compatible with most tablet and phone devices.

    • Language: English

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