. Electro-physiology . 130.— a, Photographic record of action current in the Frog's heart, with artificial excitation (as in Fig. 12", a). The interruptions of the dark line mark the moments of excitation, h, Photo- graphic record of action current after injuring the apex of the ventricle. The variation becomes monophasic. (Burden-Sanderson and Page.) of the two leading-off contacts, one phase of course disappears, and the variation becomes purely negative, monophasic (Fig. 1-"»0, Z>). Similar tracings of the spontaneously beating heart have been photographed by other in
. Electro-physiology . 130.— a, Photographic record of action current in the Frog's heart, with artificial excitation (as in Fig. 12", a). The interruptions of the dark line mark the moments of excitation, h, Photo- graphic record of action current after injuring the apex of the ventricle. The variation becomes monophasic. (Burden-Sanderson and Page.) of the two leading-off contacts, one phase of course disappears, and the variation becomes purely negative, monophasic (Fig. 1-"»0, Z>). Similar tracings of the spontaneously beating heart have been photographed by other investigators, Fig. 131, A. I). Waller,—which at first sight differs from the results of Sanderson and Page, but coincides essentially with them. Here we have a simultaneous record of the contraction curve (It, //), and the effect (c, c) produced on the capillary electrometer by the
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan
