Abstract
Summary
Right ventricular regional contractile behavior demonstrated that the sinus free wall and interventricular septum contract synchronously and in similar fashions in response to physiological interventions. The conus musculature, being very scanty in the septal region, has its regulatory behavior confined primarily to the free wall. Conal intramyocardial pressures, unlike the sinus region, are always greater than underlying cavity pressures particularly during inotropic states, thus behaving as a pressure regulator to the outflow of the right ventricle.
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