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一、残角子宫的解剖特点子宫的发生是在胎生期,由体腔下部的两侧副中肾管(也称苗勒氏管)的中段融合而成。自孕8周双侧副中肾管尾端开始并合逐渐向上进展,中间存在中隔分为两个腔,自孕12周中隔消失,即形成宫腔的始基;至妊娠最后12周子宫发育迅速,出生时子宫如成人的小指腹大。如在子宫发育过程中双侧副中肾管的上中段未并合,并一侧下段缺如,则形成残角子宫,其形态基本上似两个单角子宫,各有宫体及一侧附件,所不同者残角子宫无宫颈及阴道而是闭锁的死腔,下端与对侧子宫之颈峡部有纤维索条相连接但不相通。二、残角子宫妊娠的生理残角子宫既不与单角子宫相通,又不与阴道连接,妊娠是如何发生的?从生理特点说,残角与对侧单角子宫的卵管卵巢均有正常的生理功能,即同样能排卵及输送受精卵,残角子宫内膜也有接受孕卵着床的功能。
First, the remnant angle of the uterus anatomical features The uterus occurs in the fetus, both sides of the lower body cavity by the middle of the renal tube (also known as Miele’s tube) of the middle fusion. 8 weeks since the beginning of bilateral bilateral mesial and distal renal tuberculosis began to merge and gradually progress upward, the middle of the existence of the septum is divided into two cavities, disappeared from the 12th week of septum, the formation of the beginning of the uterine base; to the last 12 weeks of pregnancy Rapid development of the uterus, the uterus at birth, such as the adult’s little finger big. As in the process of uterine development of bilateral middle and lower middle and proximal renal tubules are not combined, and the absence of one side of the lower segment, the formation of rudimentary horn uterus, its shape is basically like two single angle uterus, each with Palace and side Annex, the different corner of the uterus without cervix and vagina but deadlock closed, the lower end of the uterus with the opposite side of the isthmus fiber cord connected but not connected. Second, the remnant of the uterus pregnancy physiologic remnant corner of the uterus neither with the single horn uterus connected with the vagina, the pregnancy is how? From the physiological characteristics of the remnant angle and contralateral single-angle uterine ovarian ovaries have Normal physiological function, that is, the same ovulation and delivery of fertilized eggs, remnant angle endometrium also received the function of pregnancy egg implantation.