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) Male pharyngeal region; (B) female cephalic region; (C and D) male cephalic region; male anterior pharyngeal region; (F) male posterior body region; (G) female posterior body region. Scale bar: A = 250 μm, B and D = 36 μm, C = 48 μm, E = 85 μm, F and G = 80 μm.
