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bladder cancer of the penis cancer of the testis circumcision congenital adrenal hyperplasia cowper's glands development ejaculated ejaculatory ducts enlarged prostate gland epididymis fertilization follicle-stimulating hormone foreskin functions gynaecomastia hormones hydrocele luteinizing hormone maintain sperm male characteristics male sex hormone organs pelvic cavity penis produce sperm prostate cancer prostate gland prostatitis puberty reproductive cells sac-like pouches scrotum secondary sex organs semen seminal vesicles sex drive sexual intercourse sexual problems spermatic cord spermatogenesis stimulates testes testicles testosterone transport sperm urethra varicocele vas deferens walnut-sized structure

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