Final answer:
The prostate gland secretes alkaline fluid into the semen, contributing to around 30% of its volume and helping in sperm health and motility. The ejaculatory ducts, running through the prostate, connect the vas deferens with the urethra and facilitate the entrance of this fluid into the urethra.
Step-by-step explanation:
Function of the Prostate and Its Connection to the Urethra
The function of the prostate gland is to secrete a slightly alkaline fluid that constitutes about 30 percent of the total volume of semen. This fluid contains a high concentration of zinc, which is important for sperm motility and health. The prostate secretions play a role in the coagulation and subsequent decoagulation of semen following ejaculation, aiding in retention within the female reproductive tract and providing an environment conducive to sperm movement. When considering 'What is the function of the prostate and how does it enter the urethra?', the correct answer is A) Secretes alkaline fluid; via ejaculatory ducts. The ejaculatory ducts are where the vas deferens joins with the ducts from the seminal vesicles, and they run through the prostate gland to connect with the urethra.