During sex, the penis releases a thick, whitish fluid called semen into the woman's vagina. Semen contains millions of sperm cells that deposit in and around the vagina. Several hundred of these sperm cells pass through the vagina into the uterus. From there, the sperm cells enter the fallopian tubes.
During sex, the penis releases a thick, whitish fluid called semen into the woman's vagina. Semen contains millions of sperm cells that deposit in and around the vagina. Several hundred of these sperm cells pass through the vagina into the uterus. From there, the sperm cells enter the fallopian tubes.
