Anatomy.TV is owned by a company called Primal Pictures. The library licenses Anatomy.TV through a middle party, Stat!Ref. Imaging rights belong to Primal Pictures who offers the following statement regarding fair use:
"Non-commercial/non-profit use of images, slides and animations is allowed and does not require any additional permission or license. However, Primal Pictures Ltd must always be credited as the source of the images as we maintain the intellectual property rights and copyright to the material."
Non-commercial/non-profit use includes:
Access the above (edited) statement, plus additional information regarding copyright/fair use/licensing at:
Exporting still images
Exporting video clips or animations
Exporting video clips