Describe in brief the role ofi. testisii. seminal vesicleiii. vas deferensiv. ureterv. prostate gland in human male reproductive system.

i. testis: Two functions performed by testes in human beings are the formation of sperms and secretion of the hormone testosterone to regulate the formation of sperm and are responsible for developing secondary sexual characteristics in boys during puberty.

ii. seminal vesicle: Secretion of the seminal vesicle is in the form of fluid seminal plasma that makes the transport of sperms lubricated and smooth.

iii. vas deferens: Vas deferens is the long muscular tube that carries the mature sperm to the urethra for ejaculation.

iv. ureter: Ureters are the narrow tubes that carry urine from the kidney to the urinary bladder.

v. prostate gland: It secretes prostatic fluid that nourishes sperms to keep them alive and assists sperms to swim vigorously.