anatomyofthefemalereproductivesystem.pptVIP

Anatomy of the Female Reproductive System Liu Wei Department of Ob Gy Ren Ji hospital Introduction Pelvis Pelvic floor External genitalia Internal genitalia Vessel and nerve and lymph Adjacent organs Pelvis Pelvis Bony pelvis Pelvis Joints Pelvis Ligaments Sacrospinous ligament 骶棘韧带 Extend from the lateral border of the sacrum and coccyx to the spine of the ischium Sacrotuberous ligament 骶结节韧带 Extend from the posterior aspect of the lower 3 sacral vertebrae to the ischial tuberosity Pelvis Pelvic divisions (iliopectineal line 髂耻线) False pelvis (pelvis major) Ture pelvis (pelvis minor) Bony birth canal the Pelvic inlet, the pelvic out let and the pelvic cavity Pelvis Types of pelvis The gynecoid type (女型骨盆) round, slightly ovoid or elliptical inlet. adequate sacrosciatic notch. wide interspinous diameters(≥10cm). 52%-58.9% The platypelloid type (扁平型骨盆) distinct oval inlet. very wide subpubic arch. 23.2%-29% Pelvis The anthropoid type (类人猿型骨盆) long, narrow, oval inlet. extended and narrow anterior and posterior segment. wide sacrosciatic notch. long , narrow sacrum. Straight side walls. The android type (男型骨盆) Pelvic floor The tissues closing down the pelvic outlet (muscles and fasciae) suspend and support the pelvic organs, such as uterus and bladder and rectum Posterior part (urogenital triangle) urethra and vagina pass through Anterior part (anal triangle) rectum pass through Pelvic floor Tissues Outer layer Bulbocavernosus muscle (球海绵体肌) Ischiocavernosus muscle (坐骨海绵体肌) Superficial transverse perineal muscle (会阴浅横肌) External anal sphincter (肛门外括约肌) mid layer urogenital diaphragm 泌尿生殖膈 Pelvic floor Inner layer (pelvic diaphragm 盆膈) the main support of the pelvic floor formed by the levator ani and coccygenus muscles and covering fasciae. Levator ani: pubococcygenus (耻尾肌), iliococcygenus (髂尾肌), puborectalis (坐尾肌) Pelvic floor Perineum general conception: the tissues closing down the