Image:Human brain NIH.jpg

From en-wiki:

NIH image of human brain

Source: http://lbc.nimh.nih.gov/images/brain.jpg (found on page http://lbc.nimh.nih.gov/osites.html)

License: http://www.nih.gov/about/Faqs.htm#copyright

Most of the information on our site is in the public domain and can be used without charge or restriction...There are a few exceptions. For example, some resources, such as the interactive health tutorials found on NIH's National Library of Medicine Website are restricted in their use. Copyrighted materials will include a copyright statement.

This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services. As a work of the U.S. federal government, the image is in the public domain.