Electron microscopic observations on nerve terminals in the intrinsic muscles of the albino rat iris.
D000818:Animals; D007498:Iris / Q000294:innervation*; D008854:Microscopy, Electron; D009132:Muscles / Q000294:innervation*; D009411:Nerve Endings / Q000166:cytology*; D009638:Norepinephrine / Q000378:metabolism; D010275:Parasympathetic Nervous System / Q000166:cytology*; D051381:Rats; D013564:Sympathetic Nervous System / Q000166:cytology*
D009638:Norepinephrine