What is the venous drainage of the bladder in males?

The venous drainage of the bladder in males primarily occurs through the vesicoprostatic plexus. This plexus is a network of veins that surrounds the bladder and drains blood from the bladder into larger venous structures. The vesicoprostatic plexus receives blood from the bladder as well as from surrounding structures, including the prostate. From the vesicoprostatic plexus, blood is typically directed toward the internal iliac veins, which eventually connect to the inferior vena cava.

The other options are not involved in the direct venous drainage of the male bladder. The vesicouterine plexus, for instance, is specifically associated with the female reproductive system, providing venous drainage to the bladder and uterus, which is why it does not apply in males. The external iliac veins are important in the overall venous drainage of the lower limb and pelvis, but they do not directly receive drainage from the bladder. Lastly, the saphenous vein, a significant superficial vein in the leg, has no relation to the venous drainage of the bladder. Understanding these connections illustrates why the vesicoprostatic plexus is the correct answer for the venous drainage of the bladder in males.