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"Tubal Reversal," also called "Tubal Sterilization Reversal," or "Tubal Ligation Reversal," or "Microsurgical Tubal Reanastomosis," is a surgical procedure that can restore fertility to women after a tubal ligation. By rejoining the separated segments of the fallopian tube, tubal reversal can give women the chance to become pregnant again. In some cases, however, the separated segments cannot actually be reattached to each other. In some cases the remaining segment of tube needs to be reimplanted into the uterus (a 'tubal reimplantation'). In other cases, when the end of the tube (the 'fimbria') has been removed, a procedure called a neofimbrioplasty must be performed to recreate a functional end of the tube which can then act like the missing fimbria and retrieve the egg that has been released during ovulation. == Tubal anatomy == The fallopian tube is a muscular tube extending from the uterus and ending with attached fimbria next to the ovary. The tube is attached to the ovary by a thin tissue called the mesosalpinx. The inner tubal lining is lined with cilia. These are microscopic hair-like projections that beat in waves that push fluid down the tube towards the uterus thereby helping move the egg or ovum to the uterus in conjunction with muscular contractions of the tube.The fallopian tube is normally about 10 cm (4 inches) long and consists of several regions that become wider as the tube gets farther away from the uterus. Starting from the uterus and proceeding outward, these are the: *Interstitial region - extends from the uterine cavity through the uterine muscle *Isthmic region - narrow muscular portion adjacent to the uterus *Ampullary region - wider and longer middle part of the tube *Infundibular region - funnel shaped segment next to the fimbrial end *Fimbrial region - wide opening at the end of the tube that is responsible for 'catching' the egg after it is released from the ovary during ovulation 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tubal reversal」の詳細全文を読む スポンサード リンク
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