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| * Lies mostly behind the ischial arch, sloping ventrally to its opening at the vulva. | | * Lies mostly behind the ischial arch, sloping ventrally to its opening at the vulva. |
| * The wall contains vestibular glands. | | * The wall contains vestibular glands. |
− | ** Secretions from these glands keeps the mucosa of the vestibule moist and facilitates [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology|coitus]] and [[Reproductive_System_- Anatomy & Physiology#Parturition|parturition]]. | + | ** Secretions from these glands keeps the mucosa of the vestibule moist and facilitates [[Copulatory Behaviour - Anatomy & Physiology|coitus]] and [[Reproductive_System_- Anatomy & Physiology#Parturition|parturition]]. |
| ** At [[Reproductive_Behaviour_-_Oestrus_Behaviour_- Anatomy & Physiology|oestrus]], the odour of these secretions sexually stimulates the male. | | ** At [[Reproductive_Behaviour_-_Oestrus_Behaviour_- Anatomy & Physiology|oestrus]], the odour of these secretions sexually stimulates the male. |
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| *** Merges with the adventitial layers of the [[Urinary_Bladder_- Anatomy & Physiology|bladder]] anteriorly and [[Rectum_- Anatomy & Physiology|rectum]] posteriorly. | | *** Merges with the adventitial layers of the [[Urinary_Bladder_- Anatomy & Physiology|bladder]] anteriorly and [[Rectum_- Anatomy & Physiology|rectum]] posteriorly. |
| * This combination of elastic fibres and [[Muscles_- Anatomy & Physiology#Smooth_Muscle|muscular]] layers allows the massive distension that occurs during [[Reproductive_System_- Anatomy & Physiology#Parturition|parturition]]. | | * This combination of elastic fibres and [[Muscles_- Anatomy & Physiology#Smooth_Muscle|muscular]] layers allows the massive distension that occurs during [[Reproductive_System_- Anatomy & Physiology#Parturition|parturition]]. |
− | * After [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology|coitus]], contraction of the smooth muscle layer ensures that the pool of semen remains within the cervical region. | + | * After [[Copulatory Behaviour - Anatomy & Physiology|coitus]], contraction of the smooth muscle layer ensures that the pool of semen remains within the cervical region. |
| * When relaxed, the vaginal wall collapses to obliterate the lumen and the vaginal epithelium is thrown into folds. | | * When relaxed, the vaginal wall collapses to obliterate the lumen and the vaginal epithelium is thrown into folds. |
| * The dense lamina propria contains: | | * The dense lamina propria contains: |