Perhaps you would like to study human anatomy, or simply interested to find out more about our body system, Wolfram Mathematica has make it possible for you with a readily computable format at your fingertips.
You could easily gain insight into how individual anatomical structures interplay in the human body and explore it from entire organ systems down to microscopic ganglia.
Check out the Wolfram Blog: Dissecting the New Anatomy Content in the Wolfram Language from Keiko Hirayama – Wolfram|Alpha Developer, Wolfram|Alpha Scientific Content.
There are lots of interesting examples in the blog and you could also download the post as a Computable Document Format (CDF) file.