* Ensures a tight coupling of the [[Male_Reproductive_Tract_-The_External_Genetalia_-_Anatomy_%26_Physiology|penis]] with the cervix to ensure that the large volume of semen produced by the boar is deposited in the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology|uterus]]. | * Ensures a tight coupling of the [[Male_Reproductive_Tract_-The_External_Genetalia_-_Anatomy_%26_Physiology|penis]] with the cervix to ensure that the large volume of semen produced by the boar is deposited in the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology|uterus]]. |