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子宫是个肌性的空腔器官,其大小与年龄及孕次有关。青春期及绝经期子宫较小,生育期则较大;未产妇子宫较小、经产妇子宫较大。正常子宫腔长约7～9cm。一、子宫的解剖子宫分为体部与颈部。子宫颈以阴道附着部为界分成三个部分:包绕阴道穹窿部位的子宫颈为子宫颈阴道部;位于盆腔内的子宫颈部分为子宫颈阴道上部;二者中间部分为子宫颈中部。子宫颈阴道上部之上即为子宫峡部,也就是解剖学内口与组织学内口之间,子宫峡部之上为子宫体(图1)。
The uterus is a muscular cavity organ, its size and age and gestational age related. Adolescent and menopausal small uterus, the larger the growth period; not a small maternal uterus, uterine maternal larger. Normal uterine cavity length of about 7 ~ 9cm. First, the anatomy of the uterus is divided into the body and neck. The cervix is divided into three parts by the vaginal attachment: the cervix that surrounds the vaginal fornix is the cervix vagina; the cervical part that is located in the pelvic cavity is the upper part of the cervix; the middle part of the cervix is the middle of the cervix. The upper part of the cervix and vagina is the isthmus, which is within the mouth of the anatomy and histology within the mouth, the isthmus above the isthmus (Figure 1).