Virtual Reality Bell Ringer (aka VRBR) uses Google’s Cardboard VR headset to deliver stereoscopic 3D bell ringer practise questions to undergraduate Anatomy & Physiology students.
The anatomical dissection images are originally from A Stereoscopic Atlas of Human Anatomy by David L. Bassett, MD. These stereo images (originally published in 1952) were digitized by Massachusetts General Hospital and made available for educational purposes under a Creative Commons Attribution-NonCommercial-ShareAlike license. As such, this app is also available under the same license.
The full license can be found here https://creativecommons.org/licenses/by-nc-sa/3.0/
The dissection images were modified to include 3D pins, which guide attention to specific aspects of the anatomy.