[The microvillar cells of the olfactory epithelium in swine].

Electron microscopic studies have been made on the olfactory porcine epithelium. Peculiarities of distribution of microvillar cells in the olfactory epithelium are described and their morphometric parameters are presented. It was shown that cells with long microvilli on their apex are located in the epithelium which covers the inner side of the perforated bone. Cells which have only microvillar enlargement on their apex were found on the external surface. Differential localization of microvillar cells in the olfactory epithelium indicates the existence of zones with different sensitivity. Reduction of the microvilli presumably is associated with active work or with ageing of a cell, and may correspond to those zones of the olfactory epithelium which possess different sensibilization.