. On disorders of digestion, their consequences and treatment . way as the fascioe remove it from the muscles. This is well seenby connecting the trachea of a dead rabbit with an apparatus forartificial respiration, removing the lower part of the body andhanging the thorax up with the head downwards. A solution ofPrussian blue or other injecting fluid is then poured over the lowersurface of the diaphragm, and the aj^paratus for artificial respir-ation set in mution. Before long tlie Prussian blue is pumped intothe lymph spaces of the diaphragm, which then exhibit a beautifulblue network. Simil
. On disorders of digestion, their consequences and treatment . way as the fascioe remove it from the muscles. This is well seenby connecting the trachea of a dead rabbit with an apparatus forartificial respiration, removing the lower part of the body andhanging the thorax up with the head downwards. A solution ofPrussian blue or other injecting fluid is then poured over the lowersurface of the diaphragm, and the aj^paratus for artificial respir-ation set in mution. Before long tlie Prussian blue is pumped intothe lymph spaces of the diaphragm, which then exhibit a beautifulblue network. Similar conditions to those in the diaphragm and muscles areto be found in the costal pleura {;cide Fig. -lo). Besides thesepumping arrangements in the muscles and in the serous cavitiesby which the flow of lymph is accelerated, actual rythmical. Fig. 43.—Section of jileiira. The lymph spaces appear black in the figure. AfterLudwig and Dybkowsky. Ludwigs Arbciten, 1S66. pulsation has been observed in the lymphatics and the mesenteryof guinea-pigs, but has not been found in other mammalsor man. We find, however, that there are other conditions which aid theflow of lymph. This flow naturally depends upon the differenceof pressure at the two ends of the vessels, and it will be increasedby anything raising its pressure in the tissues, or anything accelerat-ing its exit from the lymphatics into the veins. Two things whichdiminish the pressure in the veins and aid the flow of lymphinto them, are the inspiratory action of the thorax and the diastolicsuction of the heart. The effect of the inspiratory action of thetliorax is readily seen when one tries to blow up a fire, for theviolent respiratory exertions there required appear to pump eitherthe blood or lymph from the brain and by reducing the pressure tocause giddiness. AVhen the
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Keywords: ., bo, bookcentury1800, bookdecade1880, bookpublisherlondonmacmillan
