The sensitive innervation of the ostrich's nasal mucosa, through impregnative gold chloride methods, was investigated. The autonomic innervation, constituted by ganglion cells placed along the course of nerve trunks was particularly represented in the respiratory tract of the nasal cavity. The somatic nerve component, composed by free and capsulated endings, was especially distributed in the vestibular district. The nerve corpuscles were morphologically classified as Pacini, Pacini-like, Golgi-Mazzoni and Herbst. Further investigations must be expected to attribute an effective functional role particularly to this last nerve component.
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