Elements of human physiology (1907) Elements of human physiology elementsofhumanp05star Year: 1907 At the kathode k there is a small line of constriction, surrounded by an area of relaxation. At the anode itself the muscle is re- laxed, but is strongly contracted on each side of the anode, so that on rough observation it would be thought that contraction occurred at the anode itself. ureter be packed in a pulp of blotting paper moistened with normal saline, thus allowing the current to leave the contractile tissues anywhere along the ureter, we get the same aberrant results of stimulation as
Elements of human physiology (1907) Elements of human physiology elementsofhumanp05star Year: 1907 At the kathode k there is a small line of constriction, surrounded by an area of relaxation. At the anode itself the muscle is re- laxed, but is strongly contracted on each side of the anode, so that on rough observation it would be thought that contraction occurred at the anode itself. ureter be packed in a pulp of blotting paper moistened with normal saline, thus allowing the current to leave the contractile tissues anywhere along the ureter, we get the same aberrant results of stimulation as are obtained with the intestine. Snmmation ^Ye have already- seen that if two stimuli be sent into a voluntary muscle within a short interval of time, there is Fifi. 68. Diagram to show the spread of current which occurs when a current is led through a tube such as the ureter by means of two elec- trodes applied to its surface. It will be noticed that while + E is the anode, there are immediately below and around it a number of kathodes e^, e^,, e^,,, e,,,,, due to the current leaving the muscle to flow through indift'erent tissues. (Biedermann.) a summation of effect, the contraction due to the second stimulus being piled so to speak on the top of the first con- traction. That a maximal twitch is not as high as a tetanus, the product of summation of many twitches, is due to the
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