. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 306 E. FRANCES BOTSFORD these stimuli. As the interval between bursts is lengthened, either the frequency of the stimuli within the bursts must be increased or the duration of the bursts must be lengthened in order to produce a series of increasing responses. The Effect of Physostigmine upon tlie Production of Augmented Responses In order to determine the underlying cause of the facilitation phe- nomenon which is manifested in the augmented contractions of the earth-. FIG. 6. Effect of physostigmine 1 ,000 cc. on the r
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 306 E. FRANCES BOTSFORD these stimuli. As the interval between bursts is lengthened, either the frequency of the stimuli within the bursts must be increased or the duration of the bursts must be lengthened in order to produce a series of increasing responses. The Effect of Physostigmine upon tlie Production of Augmented Responses In order to determine the underlying cause of the facilitation phe- nomenon which is manifested in the augmented contractions of the earth-. FIG. 6. Effect of physostigmine 1 ,000 cc. on the response of whole worm preparation to a series of single shocks. Ten successive series of shocks each consisting of 7 single shocks in 5 seconds separated from one another by an interval of 3 minutes. Series A, Ringer's drip. Series B, physostigmine drip. worm body wall muscles, application of physostigmine was tried. Wu (1939) has shown that the sensitivity of the body wall to acetylcholine is greatly increased by physostigmine. From the results of his experi- ments concerning the action of drugs on the earthworm body wall, he postulated the presence of some factor which prevented the action of. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 1690px × 1479px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
