The spread of the excitatory process in the toad's ventricle : preliminary communication / by Thomas Lewis.

  • Thomas Lewis
Date:
[1915]
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Licence: Public Domain Mark

Credit: The spread of the excitatory process in the toad's ventricle : preliminary communication / by Thomas Lewis. Source: Wellcome Collection.

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    and base are sometimes of equal length, but more usually the path to the base appears to be the longer. Thus although the general direction of travel is a base-apex direction over the greater part of the period of activation (corresponding to &) ; nevertheless the basal muscle at the surface is usually activated later than the apical muscle at the surface, and is responsible for the last initial deflection S. There are weighty objections to the earlier interpretations of curves from base-apex leads, where the contacts of these leads he in immediate contact with the ventricular muscle.
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