CHAPTER VII. 



DISEASES OF THE UEINAEY OEGANS. 



The urinary organs consist of tHe kidneys — two oval-shaped 

 bodies of a reddish-brown colour found lying close under the 

 spine, in the region of the loins, (lumber region), the use of 

 which is to eliminate from the blood the superfluous water, 

 holding in solution the saline and earthy impurities, reten- 

 tion of which in the system would be highly injurious ; the 

 ureters, two little membranous tubes which convey the 

 urine from the kidneys to the bkdder. The bladder itself, a 

 large membranous bag, lying in the cavity of the pelvis, in 

 which the urine is received andtetained, to be ejected at the 

 convenience of the animal'; and the urethra, a contractile 

 canal leading from the neck of the bladder, along the under 

 surface of the penis, (in the horse), at the extremity of which 

 it terminates by an open orifice, separated ff om the body of 

 the glans by a fossa ; and in the mare it opens into the floor 

 of the vagina, about four inches from the outer opening in 

 the meatus urinarius. 



INFLAMMATION OF THE KIDNEYS (^NEPHEITIS.) 



Inflammation of the kidneys is not nearly so common in 

 this country as many farmers, and most of the "farriers," 

 would lead us to suppose. We frequently meet with wise- 

 acres of this stamp, who, no matter what the case may be, if . 



