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.
Section from the pontine part of the brain stem labeled for orexin-A. In contrast to the very dense immunoreactive varicose fibers in the medial parabrachial nucleus (MPB), the adjacent caudal part of the mesencephalic trigeminal nucleus (MTN) expresses sparse density. Note that axonal varicosities and terminal button-like dots (arrows) are in close apposition to the MTN neuronal perikarya. Scale bar: 30 μm
