Overview Introduction Ejaculatory Pathway of Sperm ("SEVEn UP") Seminiferous tubules Epididymis Vas deferens Ejaculatory ducts nothing Urethra Penis Venous Drainage Venous drainage left testicular vein → left renal vein → inferior vena cava (IVC) right testicular vein → inferior vena cava (IVC) Pampiniform venous plexus veins emerging from testis and epididymis form pampiniform venous plexus veins of each pampiniform plexus converge superiorly form left and right testicular veins venous plexus may become dilated (varicose) and tortuous, producing a varicocele varicocele occurs predominantly on the left side left testicular vein enters left renal vein at approximately a 90 degree angle increased susceptibility to obstruction or reversal of flow Lymphatic Drainage Lymphatic drainage lumbar (para-aortic) lymph nodes testes superficial inguinal lymph nodes scrotum