A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . Fig. 719,—II, Dromograph. A,B, Tube inserted in the artery;C, lateral tube connected with a manometer: b, index moving in arubber membrance, a; G, handle. Ill, Cur\-e obtained by dromo-graph. It will be noticed that this quickening influenceof a local dilatation is in no sense a contradictionto the general principle that the rate of flow is in-versely proportional to the width of the bed. Thelocal change is not extensive enough to affect thetotal cross-section of t
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . Fig. 719,—II, Dromograph. A,B, Tube inserted in the artery;C, lateral tube connected with a manometer: b, index moving in arubber membrance, a; G, handle. Ill, Cur\-e obtained by dromo-graph. It will be noticed that this quickening influenceof a local dilatation is in no sense a contradictionto the general principle that the rate of flow is in-versely proportional to the width of the bed. Thelocal change is not extensive enough to affect thetotal cross-section of that level appreciably, but byreducing the resistance along one of numerousalternative paths increases the flow in that directionat the expense of the others. In such cases the flow of blood through the widened artery or arteriesis for the time being increased in rapidity, not onlyin spite of, liut actmilly in consequence of the arterybeing widened. The influence of changes in theblood pressure on the velocity is shown in the effectproduced on the latter by each beat of the the velocity of the flow is recorded by
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Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1910, bookyear1913
