Nephric tubules (nephrons) form embryonically along the nephric ridge. The ridge comprises three regions; anterior, middle and posterior. The functional kidney uses nephrons from only one or two regions of the ridge. A pronephric kidney uses only the nephrons from the anterior region of the ridge. A mesonephric kidney uses only the middle region, a metanephric kidney uses only the posterior region and an opisthonephric kidney uses the middle and posterior regions. [ http://cwx.prenhall.com/bookbind/pubbooks/martini10/chapter27/custom2/deluxe-content.html ]

This is just here as a test because I lose it

Term information

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definition
  • Nephric tubules (nephrons) form embryonically along the nephric ridge. The ridge comprises three regions; anterior, middle and posterior. The functional kidney uses nephrons from only one or two regions of the ridge. A pronephric kidney uses only the nephrons from the anterior region of the ridge. A mesonephric kidney uses only the middle region, a metanephric kidney uses only the posterior region and an opisthonephric kidney uses the middle and posterior regions.
editor note
  • TODO - check ridge vs cord vs nephrogenic cord vs blastema
has related synonym
  • nephric cord
id
  • UBERON:0005792