330 DISSECTION OF THE BABBIT 



0. The aperture of the uterus maseulinus is a large 



crescentic opening in the dorsal wall of the 



urino-genital canal. 

 p. The verumontanum is a small vascular papilla, 



immediately behind the aperture of the uterus 



maseulinus. 

 q. The apertures of the ducts of the prostatic glands 



are small slit-like openings at the sides of the 



verumontanum. 



B. The Female Rabbit. 



1. The xirinary system is the same as ia the male, except 



that the ureters open into the bladder much further 

 forward, close to its anterior end. 



2. The reproductive system. 



Remove the pelvic symphysis as in the male (p. 327) ; and 

 inflate the vagina and bladder with a blowpipe, inserted into 

 the vulva. Ligature the vestibule about an inch in front of 

 the vulva, to prevent the air escaping. 



a. The ovaries are a pair of oval bodies, of a pale 



yellowish colour, and about three-quarters of an 

 inch long, attached to the dorsal wall of the 

 abdomen, behind the kidneys and about an inch 

 in front of the crests of the ilia. 



On their surfaces the Graaiian follicles, each 

 of which contains an ovum, are visible as small 

 rounded semi-transparent projections. 



b. The oviducts are formed from the pronephric ducts 



of the embryo. Their anterior ends are narrow, 

 and form the Fallopian tubes : the middle 

 portions are wider, and become the uteri, within 

 which the young are developed ; and the posterior 

 ends unite to form a median tube, the vagina. 



i. The Fallopian tubes are a pair of narrow, slightly 

 convoluted tubes, about the size of the ureters. 

 They lie along the free edges of the broad 



