Figure 1.

A schematic illustration showing the vascular system in the human penis. (A) Upper lateral view. The DDV is consistently in the median position, receives the blood of the emissary veins from the CC and of the circumflex vein from the corpus spongiosum. It is sandwiched by CVs, although these lie in a deeper position. Bilaterally each dorsal artery is sandwiched by its corresponding medial and lateral PAVs, respectively. Note that the lateral PAV merges with the medial one proximally. The deeper colour of the veins indicates the deepest group of the vasculature. The internal pudendal artery gives a branch to bulbourethral artery and then the cavernous artery, which is the major supplier of the CC as well as the dorsal artery supplying the glans penis. (B) A cross-section of the mid-portion. Note that there are seven veins rather than the traditionally reported one, although it becomes four at the level of penile hilum because a merger in each pair of the nomenclature veins. The ERVs are arrayed in an imaginary arc on the dorsal aspect of the tunica albuginea. The penile artery does not always accompany fellow veins.