Surgery; its theory and practice . ric acid, oxalate of lime, or of some for-eign body other than a calculus, as apiece of catheter, hair-pin, blood or occurs most frequently in the laterp>er!ods of life, and is then generally pro-duced as follows : A calculus or other for-eign body irritates the mucous membraneof the bladder, and a secretion of mucusis, in consequence, poured out. Thismucus decomposes the urea contained inthe urine into carbonate of ammonia and water. The carbonateof ammonia unites with the acid phosphates, and an insolublemixed phosphate of ammonia magnesia and
Surgery; its theory and practice . ric acid, oxalate of lime, or of some for-eign body other than a calculus, as apiece of catheter, hair-pin, blood or occurs most frequently in the laterp>er!ods of life, and is then generally pro-duced as follows : A calculus or other for-eign body irritates the mucous membraneof the bladder, and a secretion of mucusis, in consequence, poured out. Thismucus decomposes the urea contained inthe urine into carbonate of ammonia and water. The carbonateof ammonia unites with the acid phosphates, and an insolublemixed phosphate of ammonia magnesia and lime is thrown downand deposited on the foreign body. Hence these calculi are onlymet with in alkaline conditions of the urine. Although calculi may be chiefly composed of one constituent,they are more often composed of several, which may be arrangedin alternate layers {allernatini:^ calculus). The formation of theselayers is due to the varying state of the patients health and of thecondition of the mucous membrane of the Section of of limecalculus. DISEASES OF THE HLADDER. Extroversion or ectopia vesic/e is the mnlformation in which,in consequence of an arrest in the develoi)ment of the anteriorwall of the bladder and the corresponding part of the abdominalparietes, the posterior wall of the bladder is pushed forward bythe pressure of the abdominal viscera, and protrudes as a red ACUTE CYSTITIS. 679 velvety tumor. It is associated with epispadias or absence of theupper wall of the urethra, and with failure of union of the pubicbones at the symphysis. The testicles are frequently retained infolds like the labia on either side. It is attended with extremediscomfort from the constant dribbling away of the urine fromthe mouths of the ureters, which can be seen on the surface of thetumor. Treatment.—Many operations having for their object theclosing in of the bladder by flaps of skin taken from the adjacentabdominal wall, have been performed for the relief or c
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectsurgery, bookyear1896
