Mesonephros become functional in embryo. If persists in adult, modified by addition of tubules from posterior nephric ridge - opistonephros, characteristic of most adult fish and amphibians. Thus, the ...
Reproductive system of birds The gonads develop from two sources during embryonic development. When the nephric ridges are well established, genital ridges appear on their surface. This tissue forms ...
Background: Crohn's Disease (CD) commonly presents extra-intestinal manifestations, but cardiac involvement is considered rare. The aim of the present study was to assess cardiac involvement in CD ...