Examples of Midsagittal Cutaway brains

leading from

Alien in the brain

While it appears that HR Giger was inspired by a midsagittal brain cutaway for the side view of his alien creature, while the brains contain similar features, they are not identical

source: http://cdn.c.photoshelter.com/img-get/I0000fjQXINflqsc/s/600/600/900881.jpg

source :http://www.callisto-science.org/NSI/Neuroscience_Image_Database/Images/sol04373.jpg

source: http://rint.rechten.rug.nl/rth/ess/brain.gif

a cutaway of a human brain (source: http://faculty.sdmiramar.edu/)