Document Detail


Glomerular bypass shunts and distribution of glomeruli in the kidney of the lesser spotted dogfish, Scyliorhinus caniculus.
MedLine Citation:
PMID:  1423497     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Scanning electron microscopy of corroded resin casts of the renal vasculature of Scyliorhinus caniculus has revealed a novel vascular pathway arising from the afferent arteriole and bypassing the glomerulus. This glomerulus bypass shunt occurred in 36% of the glomerular casts examined. The shunt ran to join a peritubular network of capillaries and thereby offers the potential to vary the degree of glomerular perfusion and control the proportion of active glomeruli. In 29% of glomeruli two efferent arterioles drained the capillary knot. Glomeruli were located close to the dorsal margin of the posterior mass of the kidney, and towards the lateral edge of the anterior lobes of the kidney of female dogfish. In male dogfish, glomeruli were evenly distributed through the posterior mass of kidney, while in female dogfish 89% of glomeruli occurred in the posterior mass and 11% of glomeruli were located within the small anterior lobes.
Authors:
J A Brown; C Green
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cell and tissue research     Volume:  269     ISSN:  0302-766X     ISO Abbreviation:  Cell Tissue Res.     Publication Date:  1992 Aug 
Date Detail:
Created Date:  1992-12-14     Completed Date:  1992-12-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417625     Medline TA:  Cell Tissue Res     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  299-304     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, University of Exeter, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Arterioles / anatomy & histology
Capillaries / anatomy & histology
Corrosion Casting
Dogfish / anatomy & histology*
Female
Kidney Glomerulus / anatomy & histology*,  blood supply*
Male
Microscopy, Electron, Scanning
Renal Circulation
Sex Characteristics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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