Human physiology . Fin. SO.—Rhythmic contractions of intestine. (Bayliss and Starling.) A, systolic and diastolicmovements of intestine. Balloon method. Time marking = 0 seconds. B, same movements asA, recorded by two enterograplis, showing synchronous activity of longitudinal (7.) andcircular ((.) muscle-fibres at same spot. The descending direction of the arrows indicatesdirection of rhythmical activity inherent in the muscle cells, and that theyare propagated by muscular conduction, as assumed by Engelmann,Gaskell, and Fauo for cardiac rhythm. In direct contradiction to this t


Human physiology . Fin. SO.—Rhythmic contractions of intestine. (Bayliss and Starling.) A, systolic and diastolicmovements of intestine. Balloon method. Time marking = 0 seconds. B, same movements asA, recorded by two enterograplis, showing synchronous activity of longitudinal (7.) andcircular ((.) muscle-fibres at same spot. The descending direction of the arrows indicatesdirection of rhythmical activity inherent in the muscle cells, and that theyare propagated by muscular conduction, as assumed by Engelmann,Gaskell, and Fauo for cardiac rhythm. In direct contradiction to this thesis we have Yanases observa-tions on the intestinal movements of embryo rabbits and thehuman foetus in premature abortion. He found that the period 1 In all curves recorded by Bayliss and Starling with the balloon method,contraction causes an upward movement of the lever. In the curves obtained bymeans of the enterograph, contraction is signified by a ilownicurd to be read from left to right.—


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysiology, bookyear1