The motions of the brain : with illustrative graphic tracings ; On the behaviour of carbolised catgut catgut inserted among living tissues / by William J. Fleming.

  • Fleming, William James.
Date:
[1877?]
Catalogue details

Licence: Public Domain Mark

Credit: The motions of the brain : with illustrative graphic tracings ; On the behaviour of carbolised catgut catgut inserted among living tissues / by William J. Fleming. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    increase of volume of the hand,* the possible effect of this factor in the production of some obscure phenomena of double dicrotism seems worthy of attention. The effect of coughing, as shown in the following tracing (from M‘Donald), puts in blade and white the physiology of the action both as affecting the respiration and circulation. A cough. We have the long breath, followed by the sudden expiration, at once increasing the vascular tension and the rapidity of the cardiac beats, and then both tension and rapidity gradually coming to the normal. In speaking, we have less sudden changes, but marked effects on the respiratory oscillation, reacting on the cardiac- curves. Fio-. 6. Speaking. M. Francois-Franck has shown that “straining produces an enormous augmentation of the volume of the brain, with increased frequency and dicrotism of the pulsations. Circulatory.—Effects of interference with the circulation. Numerous experiments have been tried on the effect of compression of various blood-vessels by all the physiologists referred to above, and they have arrived at very similar results. We ourselves have investigated the effect of the general excitement of the circulation produced by the slight * Francois-Franck.- Travailx du Laboratoire, lb76.
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