Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== UTERUS ====== * Uterus * Synonym * Hysteria , womb , * Definition * Child bearing organ in females * Situation * In pelvis between bladder and rectum * Palpated bimanually during a per vaginal examination * Protects and provides nutrition to a fertilized ovum * Size and shape * Pyriform * 7.5 cm long , 5 cm broad , 2.5 cm thick * Weighs 30- 40 grams * Position and angulation * 90 with long axis of vagina * Forward tilting of uterus relative to vagina * Anteversion * Backward tilting of uterus relative to vagina * Retroversion * Slightly flexed at level of internal os of cervix * Anteflexion * 125 degree * Long axis of uterus corresponds to * Axis of pelvic inlet * Parts * Upper expanded part - body * Upper 2/3 * Lower cylindrical part - cervix * Lower 1/3 * Junction of these two parts * Isthmus * Part of uterus above opening of fallopian tube * Fundus * Superolateral angle of body projects out * Cornua * Fundus * Convex like a dome * Covered with peritoneum * Directed forward when bladder is empty * Fertilized oocyte is usually * Implanted posterior wall of fundus * Or Upper part of body of uterus * Anterior / vesical surface * Body is flat * Related to urinary bladder * Covered with peritoneum * Forms * Posterior or superior wall of uterovesical pouch * Posterior / intestinal surface * Convex * Related to coils of terminal ileum and to sigmoid colon * Covered with peritoneum and forms anterior wall of rectouterine pouch * Lateral border * Convex and rounded * Provides attachment to broad ligament of uterus * Connects to lateral pelvic wall * Uterine tube opens in to uterus * At upper end of this border * End of this border * Anteroinferior to tube * Gives attachment to round ligament of uterus * Posteroinferior to tube * Ligament of ovary * Uterine artery ascends along the lateral border of uterus between two layers of broad ligament * Cavity of uterus * Sagittal section * It is a mere slit * Compressed anteroposterior * Coronal section * Triangular in shape * At Apex * Becomes continuous with canal of cervix * Junction called as internal os * Cervix * Supravaginal part * Relation * Anterior * Bladder * Posterior * Rectouterine pouch containing coils of intestine and rectum * Each side * Ureter and to uterine artery embedded in parametrium * Vaginal part * Projects in to anterior wall of vagina * Space between it and vagina * Fornices * Communication * Externally by external os * Nulliparous women * Small and circular * Multiparous women * Bounded by anterior and posterior lips * Cervical canal * Cavity of cervix. * Fusiform in shape * Internal os * Canal is flattened * Anterior wall * Posterior wall * Walls show * Mucous folds * Arbor vitae uteri * Folds interlock with each other to close the canal * Ligaments of uterus * Peritoneal ligaments * Anterior ligament * Uterovesical fold of peritoneum * Posterior ligament * Rectovaginal fold forming rectovaginal pouch of peritoneum * Broad ligaments ( right and left ) * Bladder to lateral pelvic wall * Surfaces * Anterior , posterior * Borders * Upper , lower , medial , lateral * Upper border is free * Mesoovarium * Attached to posterior later of braod ligament * Mesosalpinx * Suspensory ligament of ovary or infundibulopelvic ligament * Broad ligament consists of following structures * Uterine tube * Round ligament * Ligament of ovary * Uterine vessels * Ovarian vessels in infundibulopelvic ligament * Uterovaginal and ovarian nerve plexus * Epoophoron * Paraphooron * Fibromuscular ligaments * Round ligament of uterus * Transverse cervical ligament * Uterosacral ligament * Arterial supply * Uterine artery * Division of internal iliac artery * Partly by ovarian artery * Venous drainage * Lymphatic drainage * Nerve supply * Supports of uterus * Primary supports * Muscular or active supports * Pelvic diaphragm * Perineal body * Distal urethral sphincter mechanism * Fibromuscular or mechanical support * Uterine axis * Pubocervical ligament * Transverse cervical ligament of mackenrodt * Uterosacral ligament * Round ligament of uterus * Secondary support * Broad ligament * Vesicputerine pouch and fold of peritoneum * Rectovaginal pouch or rectouterine pouch and fold of peritoneum * Role of individual supports * Pelvic diaphragm * Perineal body * Urethral sphincter mechanism * Uterine axis * Pubocervical ligaments * Transverse cervical ligaments of mackenrodt * Uterosacral ligaments * Round ligament of uterus {{:dissection:uterus_internal.jpg}} {{:dissection:uterus-external_back.jpg}} {{:dissection:uterus-external.jpg}} {{:dissection:uterus-normal.jpg}} {{::anatomy:uterus-general.png}} {{::anatomy:uterus-ligaments.png}} {{::anatomy:uterus-supports.png}} {{::anatomy:uterus.png}} {{:histology:uterus-secretory.jpg}} {{:histology:uterus.jpg}} en/uterus.txt Last modified: 2023/06/20 12:42by 127.0.0.1