. A manual of diseases of the nervous system. i 19 I B I BEiSE II. Fig. -Tracings of the Action of the Sphincter vertical lines represent seconds of time. Effect on contraction of sphincter of the injection into the rectum of a smallquantity of air at *. a, fall in pressure due to the inhibition of the contrac-tion ; h, rise due to the slowly returning contraction. 2. Effect of the intro-duction of the instrument, a, sudden rise of lever at moment of introduction,due to the exposure of the instrument to the pressure of the sphincter (the topof this line represents the degree of pr
. A manual of diseases of the nervous system. i 19 I B I BEiSE II. Fig. -Tracings of the Action of the Sphincter vertical lines represent seconds of time. Effect on contraction of sphincter of the injection into the rectum of a smallquantity of air at *. a, fall in pressure due to the inhibition of the contrac-tion ; h, rise due to the slowly returning contraction. 2. Effect of the intro-duction of the instrument, a, sudden rise of lever at moment of introduction,due to the exposure of the instrument to the pressure of the sphincter (the topof this line represents the degree of previous contraction) ; h, initial rise due toincreased contraction; e, fall from, partial inhibition; cf, subsequent contrac-tion, rising to a greater degree than the initial contraction, and subsequentlyfalling slightly. 3. Effect of cough, a, pressure of tonic contraction ofsphincter (the slight irregularities are due to pulse-waves); h, fall in pressure,due to the movement of the instrument by the cough ; c, initial contraction;d, relaxation of inhibited sphin
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnervoussystem, bookye
