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Postnatal development of the vallate papilla and taste buds in rats

dc.contributor.authorHosley, Mark A.en_US
dc.contributor.authorOakley, Bruceen_US
dc.date.accessioned2007-04-06T18:01:26Z
dc.date.available2007-04-06T18:01:26Z
dc.date.issued1987-06en_US
dc.identifier.citationHosley, Mark A.; Oakley, Bruce (1987)."Postnatal development of the vallate papilla and taste buds in rats." The Anatomical Record 218(2): 216-222. <http://hdl.handle.net/2027.42/49852>en_US
dc.identifier.issn0003-276Xen_US
dc.identifier.issn1097-0185en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/49852
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=3619089&dopt=citationen_US
dc.description.abstractThe postnatal maturation of the vallate papilla and its taste buds was quantitatively investigated in rats by light microscopy. Specifically, we measured postnatal increases in the size of mature vallate taste buds and the vallate papilla, increases in the thickness of the gustatory epidermis, and increases in the number of mature taste buds and taste cells per bud. Mature taste buds, defined as those having a taste pore, are rare at birth but proliferate rapidly during the first postnatal month until an average of 610 mature taste buds has accumulated by 90 days. Throughout this postnatal period, mature taste buds adjust to the developmental thickening of the epidermis by continuously increasing in length. Mature taste buds also increase in width, in part due to a threefold increase from 10 and 45 days in the number of taste cells per bud. From 10 to 21 days there is an average daily net increase of three cells per mature taste bud. The maturational increase in taste buds and cells may contribute to the functional changes in taste nerve responses known to occur over the course of several generations of taste receptor cells. The dimensions of the vallate papilla and the surface area of the gustatory epithelium increase logarithmically with age. Although mature taste buds continue to increase in number until 90 days, both taste bud density (178/mm 2 ) and the number of cells per mature taste bud (70–75 cells) reach ceilings by 45 days. Thus, density-dependent factors appear to control vallate taste bud maturation. The immaturity of lingual taste buds in newborn rats supports the view that odor, rather than taste, is the chemosensory signal that guides suckling in altricial rodents.en_US
dc.format.extent903886 bytes
dc.format.extent3118 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.publisherWiley Subscription Services, Inc., A Wiley Companyen_US
dc.subject.otherLife and Medical Sciencesen_US
dc.subject.otherCell & Developmental Biologyen_US
dc.titlePostnatal development of the vallate papilla and taste buds in ratsen_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelMolecular, Cellular and Developmental Biologyen_US
dc.subject.hlbtoplevelHealth Sciencesen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Biology, University of Michigan, Ann Arbor, MI 48109en_US
dc.contributor.affiliationumDepartment of Biology, University of Michigan, Ann Arbor, MI 48109en_US
dc.identifier.pmid3619089en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/49852/1/1092180217_ftp.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1002/ar.1092180217en_US
dc.identifier.sourceThe Anatomical Recorden_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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