anatomy
penis
also: phallus
the male organ through which the URETHRA passes, carrying URINE or SEMEN . It is made up of tissue that is filled with blood during sexual arousal, producing an erection that enables penetration of the VAGINA and EJACULATION of semen. The GLANS is the end part, normally covered by the FORESKIN (prepuce).
Source: mediLexicon corpus · slug
penis