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PBDSTCIPLES OF VETEEINARY SCIENCE 



dibulum for the purpose of catching the ova when they are dis- 

 charged from the surface of the ovary. The uterine end joins 

 the womb. Their function is to convey the ova to the uterus. 



The uterus is a hollow, muscular organ situated in the ab- 

 dominal cavity, from the walls of which it is suspended by the 

 broad ligaments. It is commonly termed the womb and con- 

 sists of two horns, the body, and the neck. 



',13. 



Fig. 50. — Genital organs of mare, lateral view: 1, Left ovary; 2, fallopian 

 tube; 3, 4, 5, uterus; 5', cervix of uterus, and 5", os uteri, seen through window 

 cut in vagina; 6, broad ligament of uterus; 6', round ligament of same; 7, vagina; 

 8, 9, lips of vulva; 9' and 9", commissures of vulva; 10, constrictor muscle; 

 11, erectile gland; 12, wall of abdomen; 13, kidney; 14, ureter; 15, bladder; 16, 

 urethra; 17, rectum; 18, anus; 19 and 19', 20, 21, 22, 23, muscles; a, a', a", b, c, 

 arteries; d, ischium; e, pubis; /, ilium. (After Ellenberger, in Leisering's Atlas.) 



In the mare the horns are about 10 inches long and rounded at 

 the anterior ends. The body is about 6 inches in length and 

 cylindric in shape. The neck or cervix is the constricted part 

 which joins the vagina. In the uterus the fetus is retained and 

 nourished until it is able to maintain a separate existence. 



The mucous membrane lining the horns and body of the uterus 

 of the mare is perfectly smooth. That of the cow presents 

 about a hundred uterine cotyledons commonly known as "but- 



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