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Scanning electron microscopy of swine lymphoid organs

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dc.contributor.authorRamos, Josées
dc.contributor.authorRamis, Antonio J.es
dc.contributor.authorRabanal, Rosa M.
dc.contributor.authorMarco, Alberto
dc.contributor.authorDomingo, Mariano
dc.contributor.authorFerrer, Luis M.
dc.date.accessioned2011-02-01T08:45:08Z
dc.date.available2011-02-01T08:45:08Z
dc.date.issued1990
dc.description.abstractThe aim of this investigation was to study by scanning electron microscopy the structure of several swine lymphoid organs (lymph nodes, Peyer's patches, and tonsil). Two groups of animals were used: sixmonth- old pigs and six- to nine-day-old piglets. Samples were jet-washed to eliminate most free cells in order to observe the reticular framework of these organs more clearly. Peyer's patches in piglets showed two types of villi. In one of them the cellular types were absorptive cells and goblet cells. The second type of villi were shorter and wider, with M cells characterized by presenting long, thick microvilli over their surfaces. Peyer's patches of pigs did not show this second type of villi but were usually covered by absorptive villi. The soft palate tonsil was similar in both groups of animals with its surface epithelia1 cells full of microfolds, partially and frequently obscured by microorganisms. The appearance of the surface epithelium in the same crypt was different depending on the area. There was a large number of holes through which cells apparently passed towards the crypt lumen. The medulla in the lymph nodes was at the periphery and showed a dense reticular framework. Cortex-like lymphoid tissue was formed by lymphoid follides and diffuse lymphoid tissue with high endothelid venules and lymphatic sinuses. The serosal surface of lymphoid organs was formed either by a typical mesothelial cell layer (small intestine) or by loosely arranged connective fibers (lymph nodes).es
dc.formatapplication/pdfes
dc.format.extent10es
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/18195
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectSwinees
dc.subjectLymphoid organses
dc.subject.otherCDU::6 - Ciencias aplicadas::63 - Agricultura. Silvicultura. Zootecnia. Caza. Pesca::636 - Veterinaria. Explotación y cría de animales. Cría del ganado y de animales domésticoses
dc.titleScanning electron microscopy of swine lymphoid organses
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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Histology and histopathology Vol. 5, nº 4 (1990)