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Renal Anatomy - Anatomy & Physiology (view source)
Revision as of 18:48, 20 September 2008
, 18:48, 20 September 2008→Anatomical Species Differences
==Anatomical Species Differences==
==Anatomical Species Differences==
[[Image:lambpigkidcombDM.jpg|right|thumb|250px|<small><center>A picture showing a typical lamb and pig kidney. (Courtesy of Donal McNally - University of Nottingham</center></small>]]
[[Image:lambpigkidcombDM.jpg|right|thumb|150px|<small><center>A picture showing a typical lamb and pig kidney. (Courtesy of Donal McNally - University of Nottingham</center></small>]]
The various species have major and rather striking differences in the structure of their kidneys.
The various species have major and rather striking differences in the structure of their kidneys.
===Porcine===
===Porcine===
[[Image:pigkiduriap.jpg|right|thumb|125px|<small><center>Pig Kidney. (Courtesy of Prof GW England (Notts))</center></small>]]
The kidneys are dorsoventrally flattened. The renal pelvis opens into quite a large space of two major calicyes from which bud about 10 minor calyces. These attach to one renal papillae each. The kidneys have a smooth surface.
The kidneys are dorsoventrally flattened. The renal pelvis opens into quite a large space of two major calicyes from which bud about 10 minor calyces. These attach to one renal papillae each. The kidneys have a smooth surface.
===Equine===
===Equine===
[[Image:horsekiduriap.jpg|right|thumb|125px|<small><center>Horse Kidney. (Courtesy of Prof GW England (Notts))</center></small>]]
The equine kidneys not only have very different shapes compared to the rest of the domestic species but they also each have a different shape. The right kidney is described as heart shaped whilst the left is described as being pyramidal. Each organ weighs approximately 700g and both are dorsoventrally flattened. The kidneys are basically unipyramidal and the only demarcation between what were the multiple pyramids of the foetus are the interlobar arteries. This is not always the case in the foal where it is common to be able to identify lobes and the external surface is not always smooth. The horse has a single renal papilla like the dog and its renal pelvis is large and irregular with 2 recesses (finger like processes). The cells of its pelvis secret mucin giving the urine its cloudy appearance.
The equine kidneys not only have very different shapes compared to the rest of the domestic species but they also each have a different shape. The right kidney is described as heart shaped whilst the left is described as being pyramidal. Each organ weighs approximately 700g and both are dorsoventrally flattened. The kidneys are basically unipyramidal and the only demarcation between what were the multiple pyramids of the foetus are the interlobar arteries. This is not always the case in the foal where it is common to be able to identify lobes and the external surface is not always smooth. The horse has a single renal papilla like the dog and its renal pelvis is large and irregular with 2 recesses (finger like processes). The cells of its pelvis secret mucin giving the urine its cloudy appearance.