#hymen__maidenhead__virginal_membrane  a fold of tissue that partly covers the entrance to the vagina of a virgin
  supertype:  #mucous_membrane__mucosa  mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
  part of:  #vagina
  subtype:  #imperforate_hymen__imperforatehymen  hymen that is completely closed so that menstrual blood cannot flow out

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