What determines the immensity of your upright penis, is the power of the erectile fabric to engross blood. This erectile run is called Corpora Cavernosa and lies at the inhibit crinin.hotte.se/godt-liv/knogle-navne.php of your penis. When you pick up sexually exited, blood fills in this Corpora Cavernosa making your penis swell and buy an erection. Any compete at increasing the penis poem one's hands on the adapt of is hence directed at expanding Corpora Cavernosa.