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      Versuche in vitro über den Einfluss der Muskelkontraktion auf die Dynamik der Gefässwand

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      Journal of Vascular Research

      S. Karger AG

      Impedance, arterial, Wave amplification, Peripheral heart

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          Abstract

          The present paper deals, firstly, with an in vitro determination of impedance of large sections of carotide arteries. These experiments were thought of as a complement to our earlier experiments on the living animal. Their results can also be explained by a diminished damping factor, when the vascular muscles are brought into a contracted state. In some further experiments, pressure alone was recorded; the vessel was connected to a pump with sinusoidal movement of its piston, as in the first series of experiments. If the pump is set in such a position that, at the beginning of its movement, the piston is near the entrance for the artery attached to it, and when the vessel is inactive, the pump will produce pressure waves whose maxima will coincide with the static pressure before the onset of pumping. On the other hand, if the vessel is brought to an excited state by application of histamine, the pressure maxima exceed the pressure at rest. We conclude, therefore, that an excited vessel will produce additional forces or tension when it is quickly stretched and will follow the stretch, even when the frequency of these stretches is as high as 1 to 4 cps.

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          Author and article information

          Journal
          JVR
          J Vasc Res
          10.1159/issn.1018-1172
          Journal of Vascular Research
          S. Karger AG
          1018-1172
          1423-0135
          1972
          1972
          18 September 2008
          : 9
          : 2
          : 81-88
          Affiliations
          Forschungsinstitut für Kardioangiologie der Universität Freiburg
          Article
          157919 Angiologica 1972;9:81–88
          10.1159/000157919
          © 1972 S. Karger AG, Basel

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          Page count
          Pages: 8
          Categories
          Paper

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