What are the major functions of male accessory ducts and glands?

Major functions of male accessory ducts is storage and transport of sperms from testis to outside through urethra.

Major functions of glands are as follows:

(i) Seminal vesicles

(a) Fructose which is used as energy source by the sperm.

(b) Prostaglandins that induce muscle contraction.

(ii) Prostate glands secrete calcium and other buffering agents to neutralise the acidic pH of vagina.

(iii) Bulbourethral glands secrete mucus rich fluid for lubrication.