Anatomy Expert is a collection of 3-D models, photos, art, histology, cross section images, models, and quizzing features. All regions and systems are represented to different degrees. The basic features of this site are free to use once a person has created an account. More advanced features do require a subscription and fees.
This site contains 3-D diagrams of body parts and organs. Examples include systemic circulation, digestive, urinary, muscle and skeletal systems.