. A text-book of human physiology . ^ con-tractions of the heart. With induction currents of higher tension(more than 1,200 volts) death occurs as a resultof paralysis of respiration, while the ventriclesbeat rapidly and powerfully and the auricles stopin diastole. Indeed by means of currents of hightension one may even restore a heart seized withfibrillary contractions to its former functionalpower, when it cannot be restored to its normalaction in any other Fig 35.—Opalina ranarum,a ciliated organism fromthe intestine of the frog,seen from above, afterWallengren. Dr, the ciliaused by t
. A text-book of human physiology . ^ con-tractions of the heart. With induction currents of higher tension(more than 1,200 volts) death occurs as a resultof paralysis of respiration, while the ventriclesbeat rapidly and powerfully and the auricles stopin diastole. Indeed by means of currents of hightension one may even restore a heart seized withfibrillary contractions to its former functionalpower, when it cannot be restored to its normalaction in any other Fig 35.—Opalina ranarum,a ciliated organism fromthe intestine of the frog,seen from above, afterWallengren. Dr, the ciliaused by the organism inchanging direction to theright. Strong induction shocks (Rhumkorff, 45 , twenty interruptions per second, primary cur-rent twenty-five volts) can be conducted from mouth to rectum for one andone-half minutes without danger to the animal. In two and one-half minuteshe dies in convulsions produced by failure of respiration; if artificial respirationis maintained the animal can survive such currents acting for ten minutes. The effect of the electric current is dependent not only upon its tension,but also upon its duration and the place of its application, as well as uponcontact between the electrodes and the body. The different animal speciesalso exhibit differences in sensitivity: the dog appears to be the most sensitive,the horse less so, still less the guinea pig, rabbit and mouse. H. COSMIC INFLUENCES It has long been firmly establi
Size: 1189px × 2100px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiology, bookyear1
