General physiology of muscles and nerves . The liXD OF the leaer of THE APPAUATfS FOR TIME MEASITRE-:\1ENT, TOGETHER WITH THE QLKK-SILVER CAPSULE. 62 PHYSIOLOGY OF MUSCLES AND NERVES. form of a thin thread, through which the current maypass. When, however, the muscle shortens the quick-silver is torn away, and resumes its ordinary convexsurface; and when, on the extension of the muscle,. Fig. 22. Diagram ob^ experijient for the electric measurejmeht OE TIJIE. the lever again sinks, though the point p again rests onthe platinum plate, yet the point q remains separatedfrom the quicksilver by an
General physiology of muscles and nerves . The liXD OF the leaer of THE APPAUATfS FOR TIME MEASITRE-:\1ENT, TOGETHER WITH THE QLKK-SILVER CAPSULE. 62 PHYSIOLOGY OF MUSCLES AND NERVES. form of a thin thread, through which the current maypass. When, however, the muscle shortens the quick-silver is torn away, and resumes its ordinary convexsurface; and when, on the extension of the muscle,. Fig. 22. Diagram ob^ experijient for the electric measurejmeht OE TIJIE. the lever again sinks, though the point p again rests onthe platinum plate, yet the point q remains separatedfrom the quicksilver by an intermediate air-filled space,and the current remains permanently interrupted. It still has to be explained how the irritation of themuscle and the closing of the time-determining current MEASUREMENT OF PULSATION BY ELECTRICITY. 63 are effected exactly at the moment of irritation. A clearidea of this Tvill be gained by examining fig. 22, in whichthe arrangement of the whole experiment is diagram-matically represented. The muscle and the apparatusrepresented in fig. 20 are again shown. The muscleis connected with the secondary coil of the inductiveapparatus J. In the primary coil J circulates a currentfrom the chain K. This current passes through theplatinum plate a, and through the platinum point a,a is attached to a lever of hard wood, a h\ and ispressed by a spring against the
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Keywords: ., bookcentury1800, bookd, booksubjectmuscles, booksubjectphysiology
