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Results 1 - 1 of 1 for penis
  1. Sperm release pathway Video 
    ... urethra then runs from the bladder through the penis. Sperm production in the testes takes place in ... are stored. The release process starts when the penis fills with blood and becomes erect. Continuing to ...
    https://medlineplus.gov/ency/anatomyvideos/000121.htm -