764 



EMBRYOLOGY 



the spermatic plexuses and the third and fourth sacral. In the sub- 

 stance of the uterus they present in their course small collections of 

 ganglionic cells, and it is said that the nerves pass finally to the nucleoli 

 of the muscular fibres (Frankenhaeuser). 



_8 

 2 * 



Fig. 203. Uterine and utero-ovarian veins (Sappey). 



i, Anterior face of the uterus, the right side covered with peritoneum on the left side the utero- 

 ovarian plexus is exposed; 2, 2, 3, 3, Fallopian tubes; 5, 5, round ligaments; 6, utero-ovarian veins 

 covered with peritoneum; 7, same vessels exposed; 8, 8, 8, veins in the broad ligament; 9, plexus at 

 the hilum of the ovary; 10, uterine vein; n, uterine artery; 12, venous plexus covering the uterus; 

 13, anastomoses of the uterine with the utero-ovarian veins. 



The Fallopian Tubes. The Fallopian tubes, or oviducts, lead from 

 the ovaries to the uterus. They are three to four inches (7.6 to 10. i 

 centimeters) long, but their length is not always equal on the two sides. 

 They lie between the folds of the broad ligament at its upper border. 

 Opening into the uterus on either side at the cornua, they present each a 



Fig. 204. Section through the left Fallopian tube (Williams, after Sappey). 



small orifice, about ^ of an inch (i millimeter) in diameter. From the 

 cornua they take a somewhat undulatory course outward, gradually 

 increasing in size, so that they are rather trumpet-shaped. Near the 

 ovary they turn downward and backward. The extremity next the 

 ovary is marked by ten to fifteen fimbriae, or fringes, which have given 

 this the name of the fimbriated extremity, or morsus diaboli. All 



