So, to start with I modeled a base mesh for each organ in Maya 2011.
I started with the heart.
Then the lungs and trachea.
Next was the liver.
Finally I created the stomach and intestines.
After modeling I unwrapped each object using UV Layout.
Unwrapped stomach and small intestine.
Unwrapped large intestine.
Next I jumped into Zbrush 4.0 for sculpting and texturing.
Right now I am finally in the process of rendering! I've rendered all of my beauty layer and currently rendering my ambient occlusion layer which is taking a good chunk of time so hopefully it will be done within the next couple of days! Here are some of the final renders for the beauty layer.
And finally the finished product! Or at least finished for now. Hope you enjoy it :]