An elementary physiology and hygiene for use in upper grammar grades . tery above the cut, thatis, between the cut and the heart. Severed arteries aremost common in the arms and the legs, and the treat-ment in such cases is simple. Figures 27 and 28show the course of the chief arteriesin the arm and the leg. Figure 29shows a simple method of graspingthe arm so as to compress the arteryand stop the bleeding, temporarily,anywhere in the arm below theelbow. The easiest and most effectualmethod of stopping the flow is,however, to put a bandage or liga-ture around the arm above the cut,and to place
An elementary physiology and hygiene for use in upper grammar grades . tery above the cut, thatis, between the cut and the heart. Severed arteries aremost common in the arms and the legs, and the treat-ment in such cases is simple. Figures 27 and 28show the course of the chief arteriesin the arm and the leg. Figure 29shows a simple method of graspingthe arm so as to compress the arteryand stop the bleeding, temporarily,anywhere in the arm below theelbow. The easiest and most effectualmethod of stopping the flow is,however, to put a bandage or liga-ture around the arm above the cut,and to place a stick inside it, asindicated in Figure 30. The stickis then to be turned, twisting thebandage, and binding the armmore and more tightly, unxil the bleeding a stone or a tightly rolled handkerchief is placedunder the ligature and over the artery, less pressure isrequired. A physician must then be summoned as soonas possible. The ligature must be kept in positionuntil the physician can tie the artery and preventfurther bleeding. With a wound in the leg the. Fig. 29. — Showinghow to compressthe Arm TO STOPBleeding. CIRCULATION 93 method of stopping the flow of blood is action is of supreme importance in all such the Bleeding stops. — If there is a break in thewater pipe laid along a city street, the water continuesto flow out until the workmen have repaired the leaking would never stopof itself. How is it then thatbleeding from a vein stopsitself, or can be stopped, soreadily ? If, whenever therewas a break in the pipes, thewater should freeze a shortdistance above the break, theice would close up the open-ing and stop the leak. Some-thing of this sort really occursin the case of a wound. Theblood does not freeze, ofcourse, but it becomes some-what solid; a change takes Fig. 30. — Showing thb~i ~~ *~ -4- „u-^ ,, ~ ~„n Method of applying a place in it which we call LlGATUEE<clotting. Blood Clotting. — Blood, as we know, i
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysiology, bookyear1
