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#The [[Sperm Cell|Sperm]] travels through the [[Sperm Duct]] where fluid is added by the [[Reproductive Gland|glands]] before travelling through the [[urethra]] as [[semen]] and coming out of the [[penis]] in a process called [[ejaculation]].
#The [[Sperm Cell|sperm]] in the [[semen]] then swim up the [[vagina]] through the [[cervix]] and to one of the [[oviduct]]s where it meets the [[ovum]].
===About "Safe Sex"===
: During [[intercourse]] some [[infection]]s can be passed from one person to another.
: [[Human]]s use several methods to prevent [[intercourse]] from spreading a [[infection]] and also to prevent [[pregnancy]].
:*Condom - A covering placed over the [[penis]] stops [[semen]] entering the [[vagina]] and can prevent [[infection]]s being spread.
:*Diaphragm - A cap placed inside the [[vagina]] to prevent [[semen]] getting past the [[cervix]]. This does not prevent the spread of [[infection]].
:*Contraceptive Pill, or Patch - A [[drug]] which prevents the [[fertilisation|fertilised]] [[ovum]] [[implantation|implanting]] into the wall of the [[uterus]]. This does not prevent the spread of [[infection]].
:*Spermicide - A chemical in a cream which can kill [[Sperm Cell|sperm]] before they reach the [[ovum]]. This does not prevent the spread of [[infection]].