Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Wholemount photos of developing human embryos from the Carnegie collection. Note increasing size and morphological complexity with developmental stage. Image from Dr. Brad Smith, University of Michigan (http://embryo.soad.umich.edu/carnStages/carnStages.html) NIH award N01-HD-6-3257 P/G F003637, with permission.
