Timeline Image Credit

Colored MRI scan of a healthy human brain seen in a sagittal section.  The large cranium is the folded orange mass in the upper frame.  This is where

 

Colored Magnetic Resonance Imaging (MRI) scan of a healthy human brain seen in a sagittal section (3C1173) � Geoff Tompkinson/Science Photo Library/Photo Researchers, Inc. All rights reserved.