A system of surgery : pathological, diagnostic, therapeutic, and operative . y established and very intensje, without, how-ever, there being as yet complete cessation of the circulation, the contents of theaffected vessels not unfrequently break through their softened and lacerable walls, occasioning thus a real extravasation of blood,as in fig. 5, representing a magnified portion ofinflamed serous membrane. Sometimes, again,although rarely, the blood escapes from thevessels, and, forcing its way through the cellu-lar tissue, forms new channels, through whichit afterwards continues to circulat
A system of surgery : pathological, diagnostic, therapeutic, and operative . y established and very intensje, without, how-ever, there being as yet complete cessation of the circulation, the contents of theaffected vessels not unfrequently break through their softened and lacerable walls, occasioning thus a real extravasation of blood,as in fig. 5, representing a magnified portion ofinflamed serous membrane. Sometimes, again,although rarely, the blood escapes from thevessels, and, forcing its way through the cellu-lar tissue, forms new channels, through whichit afterwards continues to circulate. Immediately around the seat of the greatestintensity of the morbid action, marked conges-tion exists, and the blood, consequently, passesalong very slowly, and with difficulty. Beyondthis point the phenomena are somew^hat differ-ent; the excitement is less considerable, but stillsufficient to cause active vascular determination;the blood moves in a continuous stream, and withextreme velocity, but being unable, as it ap-proaches the focus of the inflammation, to make Fh. Extravasated blood in an inflamed serousmembrane. CHAP. III. INTIMATE NATURE OF INFLAMMATION. 79 its war through the stagnant tubes, it is stmt onward through collateral chan-nels, uW for the first time fairly opened for its reception. Thus it will be seenthat, while at the centre of the morbid action stagnation occurs, and around thisa sluggish circulation prevails, an increased activity is going on in its neighbor-hood. The arteries leading to the affected part are distended, and pulsate strongly,but not, as some have asserted, with preternatural frequency. The changes produced in inflammation are admirably depicted in fig. 6, fromBennett, representing a portion of the web in the foot of a young frog, after
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery
