Seminal Vesicles
The structure indicated is the
seminal vesicle. The seminal vesicles are paired accessory glands of the male reproductive system. The seminal vesicles lie lateral to the
ductus deferens just beneath the
bladder. The
excretory duct of the seminal vesicles join the ipsilateral vas deferens to form the
ejaculatory ducts. The ejaculatory ducts formed on either side then pass through the prostate to open into the
prostatic urethra at the
colliculus seminalis. The seminal vesicles contribute a significant volume of the fluid which forms semen. Learn about the basic anatomy and structure of the male reproductive system in this
anatomy tutorial.