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The atrophied relic of the former is known as the paradidymis, that of the latter as the parovarium. Urogenital system of a human embryo of three inches in length, double natural size. h testicles, wg spermaducts, gh conducting ligament, p processus vaginalis, b bladder, au umbilical arteries, m mesorchium, d intestine, u ureter, n kidney, nn accessory kidney.

Watson has, however, reported two cases of stricture, in both of which a ureter was nearly or quite obliterated by a dense mass of connective tissue. In one case there was a history of the passage of a renal calculus years previously. In both instances the condition was associated with pyonephrosis. Watson has collected the reports of four other cases from medical literature.

Another kind of vertigo begins with the disordered action of some irritative muscular motions, as those of the stomach from intoxication, or from emetics; or those of the ureter, from the stimulus of a stone lodged in it; and it is probable, that the disordered motions of some of the great congeries of glands, as of those which form the liver, or of the intestinal canal, may occasion vertigo in consequence of their motions being associated or catenated with the great circles of irritative motions; and from hence it appears, that the means of cure must be adapted to the cause.

Why a stone in the ureter, or bile-duct, produces vomiting. 10. Why after a voyage ideas of vibratory motions are perceived on shore. 11. Kinds of vertigo and their cure. 12. Definition of vertigo. In learning to walk we judge of the distances of the objects, which we approach, by the eye; and by observing their perpendicularity determine our own.

Bryce records a case of anuria of seventeen days' standing. Butler speaks of an individual with a single kidney who suffered suppression of urine for thirteen days, caused by occlusion of the ureter by an inspissated thrombus. Dubuc observed a case of anuria which continued for seventeen days before the fatal issue. Fontaine reports a case of suppression of urine for twenty-five days.

It would appear, for example, that pyogenic organisms can pass through the healthy urinary tract without doing any damage, but if the pelvis of the kidney, the ureter, or the bladder is the seat of stone, they give rise to suppuration. Similarly, a calculus in one of the salivary ducts frequently results in an abscess forming in the floor of the mouth.

Bourienne, Oberteuffer, Ruysch, Bartholinus, Morgagni, and Franck speak of vesical duplication. There is a description of a man who had two bladders, each receiving a ureter. Bussiere describes a triple bladder, and Scibelli of Naples mentions an instance in a subject who died at fifty-seven with symptoms of retention of urine.

The only well authenticated case in which the ureter alone was divided is the historic injury of the Archbishop of Paris, who was wounded during the Revolution of 1848, by a ball entering the upper part of the lumbar region close to the spine.

And may thence infer, that the vomiting, which attends the gravel in the ureter, inflammations of the bowels, and the commencement of some fevers, has a similar origin, and is not always an effort of the vis medicatrix naturæ.

The ureter of the left side was very short. The left renal artery came from the bifurcation of the aorta and the primitive iliacs. The right kidney was situated normally, and received from the aorta two arteries, whose volume did not surpass the two arteries supplying the left suprarenal capsule, which was in its ordinary place. Displacements of the kidney anteriorly are very rare.