which of the following glands are responsible for about 70 of the synthesis of semen
The prostate gland secretes about 30% of the fluid, which mixes with the fluid from the seminal vesicle and the spermatozoa. The spermatic fluid or semen is formed by the se â¦ cretions of the Testes, Seminal vescicles, Prostate gland and Bulbourethral gland.The sperms are secreted by the testes which pass through the vas deferns to seminal vescicles. The seminal vescicles contibute to about 70% of semen.The prostate gland and bulbourethral gland(Cowper's gland) further contibute to form semen.he seminal vescicles contibute to about 70% of semen. The prostate gland and bulbourethral gland(Cowper's gland) further contibute to form semen.