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Male Reproductive System

Sexual Health

    #Sex Ed#Reproduction#Birth Control#Contraceptives#Safe Sex#HIV/AIDS
CrashCourse

CrashCourse's month-long exploration of human reproduction continues with a look at testicular anatomy, the steps of sperm production, and how it’s influenced by gonadotropin and testosterone. Hank also explains how sperm mature, and how they leave the body on a tide of glandular secretions during ejaculation.