The lining of the vaginal cavity responds to stimulation from the various ovarian hormones by either building new cell layers or shedding the old ones.
the canal in the female that extends from the external genitalia (vulva) to the cervix uteri. The vagina receives the erect penis in coitus; spermatozoa are discharged into it, swim through the cervical canal, and enter the uterus. The vagina is also the passage for menstrual.
In mammals, the vagina is the elastic, muscular part of the female genital tract. In humans, it .. Examination of the vagina may also be done during a cavity search . Lacerations or other injuries to the vagina can occur during sexual assault or.