Page 9 - E-Biology Sec.2 2024-2025 U1_Handy
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Kidney’s ultrastructure:

In lower vertebrates (amphibians):
         They are thin & long in extending along the backbone sides.

In higher vertebrates (mammals):
          They are firmer behind the peritoneum

   It is differentiated internally into 2 regions:
     Cortex “outer narrow region” & Medulla “inner board region”

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Second Term
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