The relationship between nerves and smooth muscle cells in the rat iris. II. The sphincter muscle.
D000818:Animals; D007498:Iris / Q000166:cytology* / Q000294:innervation*; D008854:Microscopy, Electron; D009130:Muscle, Smooth / Q000166:cytology; D009411:Nerve Endings / Q000033:anatomy & histology*; D051381:Rats