A set of various human organs in illustrator vector format. Includes a brain, a heart, lungs, stomach, kidneys, head, and hair tissue. These are made with textured gradient mesh and would be useful for medical illustrations and graphics.
This is clipart converted and broken apart that has been released into the public domain because the document says so, and its from NASA, a USA government agency. The publication is called "The Brain in Space:"
http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/The.Brain.in.Space.html