Navigation is intuitive and detail is good. Different filters very useful to see only the relevant systems. Could be even better with more options of filtering (perhaps through a checklist of what to show and what to hide), e.g. Trying to see the anatomy of the heart is difficult in the circulatory system as all the peripheral arteries, veins, and capillaries are in the way.
Moonspear about Pocket Anatomy., v5.2