it is called the popliteal fossa
Popliteal Fossa
popliteal fossa
It is not called your uterus. That is a female body part used in procreation. It's technical name is Popliteal fossa. See for yourself: http://en.wikipedia.org/wiki/Popliteal_fossa
its called a Fleve u say it like flev-VIE
The back of the knee is called the Popliteal Fossa