Martin E, Rodriguez-Martinez H
Department of Anatomy & Histology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
Anat Histol Embryol. 1993 Sep;22(3):201-11. doi: 10.1111/j.1439-0264.1993.tb00358.x.
The development of the peritoneal folds of the testis, epididymis and ductus deferens of the pig prior to testicular descent was studied in 18 to 82 days-old embryos/fetuses. The parietal attachment of the mesonephros, mesonephric and paramesonephric ducts and gubernaculum constituted the urogenital mesentery. This could be divided in a cranial and a caudal part. The first fixed the mesonephros and had a mesogonad as a secondary fold. The second had two branches, one laterally to the umbilical artery belonging to the gubernaculum (Plica gubernacularis) and the medial to the artery contained the meso- and paramesonephric ducts. The mesogonad was related caudally with Plica gubernacularis. The fold of the meso- and paramesonephric ducts could also be divided in two parts. The caudal was a primary component of the urogenital mesentery, while the cranial was first ventral and later lateral to the mesogonad (mesorchium) and appeared as a secondary fold of the urogenital mesentery (cranial part). A vascular fold contributed to separate the suspensory ligament of the testis from the developing mesorchium. The proposed meaning of the terms used might be useful for comparative studies.
对18至82日龄胚胎/胎儿猪睾丸、附睾和输精管的腹膜皱襞在睾丸下降之前的发育情况进行了研究。中肾、中肾管和副中肾管以及睾丸引带的壁层附着构成了泌尿生殖系膜。其可分为头侧和尾侧两部分。头侧部分固定中肾，有一个性腺系膜作为次级皱襞。尾侧部分有两个分支，一个在脐动脉外侧属于睾丸引带（睾丸引带襞），另一个在动脉内侧包含中肾管和副中肾管。性腺系膜在尾侧与睾丸引带襞相连。中肾管和副中肾管的皱襞也可分为两部分。尾侧部分是泌尿生殖系膜的主要组成部分，而头侧部分最初在性腺系膜（睾丸系膜）腹侧，后来在其外侧，表现为泌尿生殖系膜（头侧部分）的次级皱襞。一个血管皱襞有助于将睾丸悬韧带与发育中的睾丸系膜分开。所使用术语的提议含义可能对比较研究有用。
