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Model Of The Internal Anatomy Of An Adult Female Pelvis Median Section. The Inner Surface Of The Anterior Pelvic Wall On The Left Of The Picture Is Covered By The Superficial Fascia Including Fat In Yellow. It Is Followed By The Rectus Abdominis Muscle In Red, Which Is Bordered By A Thick Aponeurosis Membrane White Line. The Cavity Of Pelvis Includes The Internal Genitalia The Uterus Opening On The Vagina, With An Ovary Visible In The Background, The Urinary Bladder Continuing With The Urethra, The Sigmoid Colon And The Rectum, Terminal Part Of The Large Intestine Opening On The Anus. The Ureter In Greenish Yellow Carries The Urine From The Kidney To The Bladder. The Urinary Bladder Wall Is Mainly Composed Of The Bladder Muscle In Orange Red, The Contraction Of Which Allows Urine Evacuation Through The Urethra. The Inner Surface Of This Muscle Is Covered By A Mucous Membrane In Orange With Many Folds. Located Above The Urinary Bladder, The Uterus Is Supported By Several Ligaments, Among Which A Round Ligament In White Connecting The Upper Part Of The Body Of Uterus The Fundus To The Labia Majora Of The Vulva, Through The Inguinal Canal Of The Pelvic Wall. The Uterus Includes Three Tissue Layers: The Perimetrium Peripheral, In White, Derived From The Peritoneum, The Myometrium Middle Layer With Muscles, In Red Orange And The Endometrium, Covering The Uterine Cavity In Orange. The Perimetrium Extends Anteriorly To Cover The Bladder While Forming A Pouch, The Vesicouterine Pouch, And Posteriorly To Cover The Rectum, Forming The Pouch Of Douglas. The Cervix, At The Lower Part Of The Uterus, Opens Into The Vagina; This Region Also Contains A Pocket Known As The Vaginal Cuff. The Vaginal Mucosa Shows Numerous Folds, Known As The Vaginal Rugae. The Vestibule Of The Vagina Leads To The Outside Through The Ostium. The Female Genitalia Include The Pubis, Protusion Of Fatty Tiss (Photo By BSIP/UIG Via Getty Images)