American journal of physiology . 0 mm. to 10 21 mm. to 14 23 mm. to 18 23 mm. to 20 marked waves 50332113 From 20 mm. to 3 20 mm. to 8 21 mm. to 10| 21 mm. to 14 less marked 85605033 or completely the contraction of the homolateral part of the base ofthe heart (left vein and left part of the sinus); it does also affectprofoundly the height of contraction of the left auricle, and to alesser extent that of the right auricle; the rate of contraction is notaffected in these cases because the left vagus does not innervate thepace-make
American journal of physiology . 0 mm. to 10 21 mm. to 14 23 mm. to 18 23 mm. to 20 marked waves 50332113 From 20 mm. to 3 20 mm. to 8 21 mm. to 10| 21 mm. to 14 less marked 85605033 or completely the contraction of the homolateral part of the base ofthe heart (left vein and left part of the sinus); it does also affectprofoundly the height of contraction of the left auricle, and to alesser extent that of the right auricle; the rate of contraction is notaffected in these cases because the left vagus does not innervate thepace-maker (right veins), and the auricles, or at least the right auricle,is still able to conduct impulses to the ventricle in spite of the evi-dent effects of the vagus. If we examine critically those cases inwhich the left vagus stops the heart, we find that it does so in a verydifferent way from that in which the right vagus acts, for we find,as noted above, that the right veins in reahty continue to beat in the 346 Walter E.
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Keywords: ., bookautho, bookcentury1800, bookdecade1890, booksubjectphysiology
