. Electro-physiology. Electrophysiology. FIG. 74.—Closure contraction of adductor muscle of Anodonta (excitation by the constant current); (.s), closure ; (o), opening. ttnlt: on duration of closure is most plainly seen on the prepara- tion in question if the circuit is opened before the maximum of x/inrfeniitf/ is reached. Constant currents which produce maximal contraction of the muscle when closed for 3—4 sees, often effect a merely insignificant shortening if closed for only - sec. At this range the closure contraction is greater with unaltered. PIG. 75.—Effect of duration of current on co
. Electro-physiology. Electrophysiology. FIG. 74.—Closure contraction of adductor muscle of Anodonta (excitation by the constant current); (.s), closure ; (o), opening. ttnlt: on duration of closure is most plainly seen on the prepara- tion in question if the circuit is opened before the maximum of x/inrfeniitf/ is reached. Constant currents which produce maximal contraction of the muscle when closed for 3—4 sees, often effect a merely insignificant shortening if closed for only - sec. At this range the closure contraction is greater with unaltered. PIG. 75.—Effect of duration of current on contraction magnitude of adductor muscle of Anodonta (excitation with constant current); (a), duration of closure = J sec. ; (fr), = lsec. ; (<'), = 4 sees. ; (o), opening contraction. (Biedermann.) strength of current in proportion with the time during which cur- rent passes (Fig. To). This agrees with the fact that single induc- tion shocks only stimulate the most excitable preparations at a very high intensity, so far as may be concluded from the visible. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Biedermann, W. (Wilhelm), 1852-1929; Welby, Frances A. (Frances Alice). London : Macmillan
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan
