QS Study

Frog male reproductive system:

Frogs have well organized male and female reproductive systems. Male reproductive organs consist of a pair of yellowish ovoid testes (Figure), which are found adhered to the upper part of kidneys by a double fold of peritoneum called mesorchium.


Vasa efferentia are 10-12 in number that arise from testes. They enter the kidneys on their side and open into Bidder’s canal. Finally it communicates with the urino genital duct that comes out of the kidneys and opens into the cloaca. The cloaca is a small, median chamber that is used to pass faecal matter, urine and sperms to the exterior.