<P> During ejaculation , the smooth muscle in the walls of the vas deferens contracts reflexively , thus propelling the sperm forward . This is also known as peristalsis . The sperm is transferred from the vas deferens into the urethra , collecting secretions from the male accessory sex glands such as the seminal vesicles , prostate gland and the bulbourethral glands , which form the bulk of semen . </P>
<P> During ejaculation , the smooth muscle in the walls of the vas deferens contracts reflexively , thus propelling the sperm forward . This is also known as peristalsis . The sperm is transferred from the vas deferens into the urethra , collecting secretions from the male accessory sex glands such as the seminal vesicles , prostate gland and the bulbourethral glands , which form the bulk of semen . </P>
when are spermatozoa transported from the vas deferens to the abdominal urethra
when are spermatozoa transported from the vas deferens to the abdominal urethra
ejaculation
ejaculation