On the causes of automatic excitation of the frog respiratory center

摘要: Both with reduction and the rise of pressure in frog's vessels authors observed nervous elements inspiratory center an increase rheobase, prolongation chronaxie, accomodation constant, accompanied by respiratory arrest. This process was absent expiratory motor areas. A conclusion drawn that constant afferent impulsation from baroceptors aortic zone, creating back-ground excitation area, plays leading role organization automatism center. The mechanism may become decisive organizing higher animals special conditions, for instance phenomena body revival.