Del Vecchio F
Morphol Med. 1981 Oct;1(2):73-81.
In the rat the cranial part of the Muellerian duct (M-duct), i.e. the anlage of the uterine tube, is of dual origin. The different segments of the adult tube are already recognizable during embryogenesis and may be attributed to their original materials. The preampulla arises from the infundibular field of the coelomic epithelium (= MT). The isthmus is budding from the Wolffian duct (= MW). The middle segment of the tube, the ampulla, is organized by fusion of MT and MW. In the male rat embryo MW degenerates completely, whereas MT degenerates only partially. The remaining part of MT becomes to a solid structure close to the testis, namely the testicular appendage. In the rat testicular appendage is traceable until the first postnatal day.
在大鼠中，缪勒氏管（M管）的颅部，即输卵管的原基，具有双重起源。成年输卵管的不同节段在胚胎发生过程中就已可辨认，并且可归因于它们的原始来源。壶腹前部起源于体腔上皮的漏斗区域（=MT）。峡部从沃尔夫氏管（=MW）长出。输卵管的中间节段，即壶腹部，是由MT和MW融合形成的。在雄性大鼠胚胎中，MW完全退化，而MT仅部分退化。MT的剩余部分变成靠近睾丸的实心结构，即睾丸附件。在大鼠中，睾丸附件在出生后的第一天仍可追踪到。
