section3 summary

Gametes - sperm cells system  penis,testicles scrotum external s.x.organs

vasdefenders,s vesicles prostate internal sex organs 

uretha carries semen  out of the body 

maturesat puberty sperm cell created then from testicles goes through tubes ( vd) 

to the vesicles prostate opens for the semen when if closes the urine exaculation - semen comes out of body take care of your genitals boys wash with soap 

girls wash with waterline