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An electron-microscopic study of the sensory innervation of human epiglottis was undertaken. The nerve supply of this structure was abundant; numerous free unmyelinated nerve endings of 2.5-3 microns were observed in the stratified epithelium of the epiglottis associated with clear cells containing mitochondria, rough endoplasmic reticulum, microtubules and(More)
The histology of the conchae of the nasal cavity in the guinea pig was investigated by means of conventional light and transmission electron microscopy. The results showed a clear structural difference between the anterior and the posterior portion of the conchae, being in the first zone where the vasculature was more numerous. The arterioles and the(More)
The presence of immunoreactive nervous fibers in the respiratory nasal mucosa of rats and guinea pigs was studied by means of a modified peroxidase antiperoxidase technique for whole mounting. The fibers with neuropeptide Y (NPY) always appeared in the walls of blood vessels, while the fibers immunoreactive to calcitonin gene-related peptide (CGRP) were(More)
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