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  • Title: [Relationship of inotropic vagal effects to stretching of the atrium].
    Author: Nilius B.
    Journal: Acta Biol Med Ger; 1977; 36(9):1347-50. PubMed ID: 614759.
    Abstract:
    Isolated left rabbit atria were tested. Preparations are vagal innervated and driven by a constant frequency. Isovolumetric contractions, volumes of the auricles and intraatrial pressures were recorded. With increasing intraatrial pressure the effectivity of peripheral nerve-ending stimulation decreases. There exists a critical value of atrial area. The vagal effectivity will decrease rapidly, if the atrial surface increases higher than this critical value by stretching the auricles.
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