QUESTIONS AND ANSWEES 91 



Posteriorly, it is separated from the vagina by a constriction, the 

 cervix or neck. 



Kelations: Above, to the rectum; below, with the bladder; an- 

 teriorly and laterally with the intestines ; behind, with the vagina. 



Attachments: Two broad ligaments, descending from the sub- 

 lumbar region to the sides of the uterus and eornua ; two rudimen- 

 tary, round ligaments, from the sides of the uterus to the upper 

 inguinal ring. 



Openings : One small opening in each eornua, from the oviducts ; 

 OS uteri, opening into the vagina. 



Structure: Outer serous coat, middle muscular, and inner 

 mucous. 



Blood supply : Uterine and utero-ovarian vessels. 



Nerve supply: Mesenteric and pelvic plexuses. 



Function : The sac in which the embryo is developed. 



In the cow, the concave curvature of the comua looks down- 

 ward, instead of upward, as in the mare. The body is shorter and 

 narrower and the eornua are thinner and more tapering than in the 

 mare. The interior is studded with numerous tubercles, cotyledons. 

 The cervix is longer and the muscular coat thicker. 



In the bitch, the body of the uterus is short and the eornua are 

 very long and folded, floating amongst the intestines. Its cervix 

 projects into the vagina and is even more voluminous than the body. 



Mention the ligaments of the uterus. 



Broad ligament, round ligament, and utero-ovarian ligament. 



Describe the vagina. 



The vagina is a long, membranous canal, situated in the pelvic 

 cavity, succeeding the uterus and terminating in the vulva. It is 

 made up of an inner mucous coat, a middle muscular, and its an- 

 terior part is covered with peritoneum. It is related above with the 

 rectum; laterally, with the ureters and connective tissue; below 

 with the bladder. 



Blood supply : Internal pudic artery. 



Nerve supply: Pelvic plexus. 



Function : Copulation and passage of the foetus. 



Describe the mammary gland of the cow. 



The mammary gland of the cow, situated in the inguinal region, 

 is made up of two lateral halves, each of which is composed of two 

 distinct glands. The whole mass is enclosed by a fibrous capsule. 



