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.
A, ventral view; B, posterior view. Abbreviations: bs, basisphenoid; cs, choanal septum; ect, ectopterygoid; gcs, groove on choanal septum; pal, palatine; pb, palatine bar; pt, pterygoid; ptp, pterygoid platform for palatine bar; sof, suborbital fenestra.
