Localization, morphology and ultrastructure of taste buds in the domestic duck (Cairina moschata domestica L.) oral cavity.
The Authors report on localization of the taste buds in epithelium of the palate (70%), the floor of the oral cavity (28%) and the tongue (2%) in Domestic Duck. Each taste bud is oval-shaped, measuring roughly 130 x 60 microm, and communicates with the oral cavity by a short duct. There is topographical correspondence between the buds and the parietal salivary glands. Ultrastructural examination showed the following 4 cell types: 1) light cells--characterized by cytoplasm containing sparse perinuclear filaments, numerous light vesicles, a uniformly granular nucleus. 2) dark cells--with electron-dense cytoplasm, numerous perinuclear filaments, occasional light vesicles, an irregular and densely granular nucleus. 3) intermediate cells--with characteristics common to the two previous cell types. 4) basal cells--located at the ventral part of the button.
Stornelli
M R
MR
Dept of Veterinary Anatomy, Biochemistry and Physiology, University of Pisa. rstornel@vet.unipi.it
Lossi
L
L
Giannessi
E
E
D000818:Animals; D004372:Ducks / Q000033:anatomy & histology*; D004848:Epithelium / Q000648:ultrastructure; D008854:Microscopy, Electron; D009060:Mouth Floor / Q000166:cytology; D010159:Palate / Q000166:cytology; D013650:Taste Buds / Q000648:ultrastructure*; D014059:Tongue / Q000166:cytology