Linked Life Data

1543266

Source:http://linkedlifedata.com/resource/pubmed/id/1543266

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-4-7
pubmed:abstractText
The ductuli efferentes of Sprague-Dawley rats were studied by microdissection and microscopic evaluation to document the presence of blind-ending tubules (ductuli aberrantes) and to describe morphological and ultrastructural differences between normally open ductules and blind-ending tubules. The branching patterns of the ductuli efferentes varied considerably between animals. A majority of the animals studied had either six or seven ductuli connected to the rete testis, with some animals having as few as four or as many as eight. Pairs of ductules began merging in the conus vasculosa, ultimately forming a single terminal duct within the capsule of the initial segment epididymidis. In a majority of animals, the junctions were unequally matched and located at various positions within the conus. Blind-ending tubules, found in 60% of the animals, were surrounded by thick connective tissue, and had a smaller diameter (78.7 +/- 1.4 microns) than normal ductules in the conus vasculosa (119.5 +/- 2.1 microns) or the terminus (102.2 +/- 1.5 microns). The lumina of blind-ending tubules were contracted and did not contain sperm. Nonciliated cells in the epithelium of blind-ending tubules contained fewer PAS-positive granules and electron-dense bodies (lysosomes) than nonciliated cells in normal ductules. Consideration of these characteristics will prevent blind-ending tubules from being mistaken for pathological changes in efferent ductules.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0003-276X
pubmed:author
pubmed:issnType
Print
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
423-31
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Blind-ending tubules and branching patterns of the rat ductuli efferentes.
pubmed:affiliation
Department of Veterinary Biosciences, University of Illinois, Urbana 61801.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.