Sperms are produced in the seminiferous tubules in the testes. From the seminiferous tubules, it enter the connecting network of tubules which empty the contents into the efferent ducts. From these ducts, the sperm travel through the head, body and the tail part of the epididymis and enters the sperm duct or the vas deferens. From vas deferens, the sperm along with the seminal fluid enters the urethra and is ejaculated out of the penis.