In frog, vasa efferentia are 10-12 in number that arise from testes. They enter the kidneys on their side and open into

In frog, vasa efferentia are 10-12 in number that arise from testes. They enter the kidneys on their side and open into Bidder’s canal. The received sperms from testis enter into vasa efferentia and pass through Bidder's canal, transverse canal and finally reach the urino-genital duct to pass out through cloacal aperture.