Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
SlideshowReport

PET scan of the brain in a patient with Alzheimer’s disease.

Description
This patient with Down syndrome shows the characteristic facial features (eyes and tongue) that accompany mental retardation.  
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1140 People Browsing
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 431

Previous poll results: Where do you get your textbooks?