THE FEMALE GEXITAL ORGANS 251 



(e) The uterine tube (tuba uterina), the first portion of the 

 oviduct, distinguishable by its narrow calibre, opens into 

 the abdominal cavity through a broad funnel-like ex- 

 pansion, the ostium abdominale tubae uterinae. The 

 margin bears a large number of short folds and processes, 

 the fimbriae tubae, which tend to enclose the margin of 

 the ovary. One of these is attached to the anterior end 

 of the ovary. 



A single cyst-like hydatid may be seen in the funnel-like expansion 

 of the tube, but in embalmed animals is usually collapsed. It 

 probably is a vestige of a part of the oviduct anterior to the ostium 

 abdominale. 



(/) The mesosalpinx is the peritoneum supporting the uterine 

 tube. It is continuous with the mesovarium. 



(g) The uterus, the second portion of the oviduct; distin- 

 guished by its greater diameter and muscular walls. The 

 size of this portion is enormously increased in animals 

 which contain or have borne young. 



(h) The mesometrium is the supporting peritoneum of the 

 uterus, and is a continuation of the mesosalpinx. The 

 mesometrium, mesosalpinx, and mesovarium together con- 

 stitute the broad ligament (lig. latum uteri). 



(i) The ovarian ligament (lig. ovarii proprium) is a fine thread 

 in the edge of a secondary fold of peritoneum which crosses 

 the mesosalpinx from the posterior end of the ovary to 

 the anterolateral end of the uterus. 



(j) The round ligament (lig. teres uteri) extends in line with 

 the ovarian ligament behind the uterus. It is a fine fibrous 

 cord which raises the peritoneum into a fold and which may 

 be traced from the anterior end of the uterus to the body- 

 wall ventral to the posterior portion of the inguinal ligament, 

 where it is inserted into a small peritoneal recess, the 

 homologue of the testis sac of the male. The ovarian and 

 round ligaments together represent the gubernaculum of 

 the male. 



(k) The uterine artery (a. uterina) runs through the meso- 

 metrium after originating from the umbilical artery. It 



