eps format, with jpg preview, the crucial words: brain Vector, line structure 3D model of the brain-style vector material model brain style 3D model of the brain-style vector material
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 nasa space science 58294main_The.Brain.in.Space-page-34-brain-model