DEVELOPMENT OF THE OVUM. 



81 



be given. The upper end of the common mesentery — the plica 

 vascularis (Fig. 59), as it is reflected from the cephalic pole of the 

 ovary and fimbriated extremity of the tube, is continued up towards 



appendix. 



/~*-ovar. artery 

 -Kidney 



ireter 



plica vascularis 

 ovary 



,,,, \ i . / f-int iliac. 



bladder-\~*\ \dHIP?~^ S 



ureter 



round lig. of ovary 



Fig. 59. — The position of the Ovary and Fallopian Tube in the 5th month. 



the diaphragm and in it the ovarian vessels and nerves pass to 

 the ovary and tube. The caudal pole of the ovary is joined to the 

 uterus by its round ligament. The round ligament of the uterus, 

 corresponding to the gubernaculum testis of the male, passes from 

 the brim of the pelvis, where it is attached to the horn of the 

 uterus, almost straight to the internal inguinal opening and assists 

 in the descent of the ovary and tube. 



By full time the ovary lies at the brim of the pelvis or partly 

 within it ; after birth the ovary, uterus and rectum come gradu- 

 ally to occupy their adult positions within the pelvis. This is 

 due to a relatively greater growth in the pelvis itself than in its 

 contents. The ovary, as is more frequently the case with the 

 testicle, may be arrested in its descent. 



In Fig. 6 an earlier stage is shown ; it represents on section 

 the condition about the end of the second month. The ovary 

 and tube with the remnants of the Wolffian body and duct 



