Blausen Human Atlas HD App

This Biology app can show you what's going on in your own body. It combines a medical glossary, videos, and slides that explain a myriad of medical conditions, and a really neat rotatable human body model where you can highlight different bodily systems.

iTunes link (Paid version):
http://itunes.apple.com/us/app/blausen-human-atlas-hd/id374973376?mt=8

iTunes link (lite version):
http://itunes.apple.com/us/app/blausen-human-atlas-hd-lite/id407525410?mt=8

Developer Website:
http://blausen.com/

OnScreen DNA Model App

The OnScreen DNA Model App allows you to view and manipulate a 3D model of a DNA molecule.

iTunes link:
http://itunes.apple.com/us/app/onscreen-dna-model/id364149660?mt=8

Developer Website:
http://nondummies.com/dnamodel.html

iMuscle App

iMuscle is a workout aid that allows you to zoom in on the area you're working out:

iTunes link:
http://itunes.apple.com/us/app/imuscle-nova-series-ipad-edition/id430559374?mt=8

Developer site:
http://applications.3d4medical.com/imuscle.html