Rate: Difference between revisions

No change in size ,  26 July 2007
m
Line 25: Line 25:
* the (para) sympathic nerve system.  
* the (para) sympathic nerve system.  
** The '''sympathic system''' e.g. epinephrin (=adrenalin) increases the atrioventricular conduction and contractility. (the ''fight, fright, flight'' reaction)
** The '''sympathic system''' e.g. epinephrin (=adrenalin) increases the atrioventricular conduction and contractility. (the ''fight, fright, flight'' reaction)
** Het parasympathic system (nervus vagus) e.g. acetycholin decreases the frequency and atrioventricular conduction. The parasympathic system effects mainly the atria.
** The parasympathic system (nervus vagus) e.g. acetycholin decreases the frequency and atrioventricular conduction. The parasympathic system effects mainly the atria.
* Cardiac filling increases the frequency.
* Cardiac filling increases the frequency.