title: Histological and histochemical aspects of the mucosa of the nasal conchae in the zebu (Bos indicus).
abstract: In various respiratory areas of the mucosa of the nasal conchae of the zebu (Bos indicus) there is a quantitative variation of goblet cells. The glands are tubular or tubulo-alveolar, having morphologically serous and mucous cells. The excretory ducts are formed by non-secreting cells. The goblet cells and glands elaborate a glycoprotein. The carbohydrate portion is probably an association of neutral mucopolysaccharides, sulphated acid mucopolysacchardies and sialic acid and its proteic portion contains alpha-amino radicals. Tryptophan- and tyrosine-rich proteins are demonstrated only in the glandular secretion.
mesh_terms: D000818:Animals; D001188:Artiodactyla / Q000033:anatomy & histology*; D004847:Epithelial Cells; D006025:Glycosaminoglycans / Q000378:metabolism; D008297:Male; D009296:Nasal Cavity / Q000033:anatomy & histology; D009297:Nasal Mucosa / Q000033:anatomy & histology* / Q000166:cytology / Q000378:metabolism; D011506:Proteins / Q000378:metabolism
chemical_list: D006025:Glycosaminoglycans; D011506:Proteins