下列哪个韧带是判断中骨盆是否狭窄的重要指标() ["骶结节韧带","骶棘韧带","圆韧带","宫骶韧带","卵巢固有韧带"]
横行于子宫颈两侧和骨盆侧壁之间,固定子宫颈正常位置的韧带是() ["圆韧带","阔韧带","主韧带","宫骶韧带","卵巢固有韧带"]
耻骨两降支的前部相连构成耻骨弓,两者之间的夹角称为耻骨角,正常时为() ["70°~80°","80°~90°","90°~100°","100°~105°","105°~110°"]
什么是产褥病率?
脐带脱垂的预防及护理有哪些?
简述宫内节育器放置术的禁忌证。