The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . ich the pulsation communicated during the systole travels, theimpulse at the heart and extremities being nearly rapidity of travel is accounted for by the blood ejected from PHYSIOLOGY OF THE CIRCULATION. 141 the ventricles displacing that immediately in front of it, this inturn displacing the blood in front of it, and so on ad infinitum,until
The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . ich the pulsation communicated during the systole travels, theimpulse at the heart and extremities being nearly rapidity of travel is accounted for by the blood ejected from PHYSIOLOGY OF THE CIRCULATION. 141 the ventricles displacing that immediately in front of it, this inturn displacing the blood in front of it, and so on ad infinitum,until the capillaries are reached by the advancing column on theone hand, and the heart by the receding column on the transmission of the different portions of blood meted out bythe ventricles, at each systole, may be compared to the water anddebris contained in the buckets of a dredging-machine, where eachbucket is pursued by every other bucket in a continuous all but incompressible nature of the fluid column of blood inthe vessels, taken in connexion with the fact that the blood ismoved on in relays, enables the heart, as has been stated, to exerta sucking as well as a propelling power. Fie. 84. Fig. 85. Ffc.
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