692 



MANUAL OF PHYSIOLOGY. 



united parts of the Mullerian ducts form the Fallopian tubes, 

 which become connected to the ovaries, while their cavities re- 

 main continuous with the pleuroperitoneal space. 



In the female the Wolffian duct and body atrophy, the par- 

 ovarium being in the adult the representative of the Wolffian 

 body. 



The bladder is merely a dilated portion of that part of the 

 allantois which is in immediate connection with the alimentary 



FIG. 281. 



Diagram of the sexual organs of a female embryo. (Allen Thomson.)/. Fimbriated 

 extremity of the left Fallopian tube. W. Remains of the Wolffian tubes, g. Bound 

 ligaments, o. Ovary, po. Parovarium. u. Uterus. dG. Remains of Wolffian duct, or 

 duct of Gaertner. TO. Right Fallopian tube cut short, w. Right obliterated Wolffian 

 duct. va. Vagina. 3. Ureter. 4. Bladder. 5. UracLus. h. Inferior opening of vagina. 

 C. Gland of Bartholin. v. Vulva, sc. Vascular bulb, cc. Clitoris, n. Nympha. I. 

 Labium. i. Rectum. 



canal, and the urachus is the narrowed part of the allantois con- 

 necting the bladder to the remainder of the allantois which is 

 without the body walls of the foetus. 



While the alimentary canal is in connection with the allantois, 

 the intestinal and genito-urinary passages open into a common 

 cavity at their termination ; this is the cloaca, and it is in the 

 further development of the embryo that a septum arises, dividing 

 this into an alimentary or anal portion, and an anterior or 



