Letters concerning the internal dropsy of the brain, to Charles William Quin / [William Patterson].
- Patterson, William
- Date:
- 1794
Licence: Public Domain Mark
Credit: Letters concerning the internal dropsy of the brain, to Charles William Quin / [William Patterson]. Source: Wellcome Collection.
29/98 (page 25)
![D =5- ] but are to be reckoned merely thofe tending to In- troduce that ftate, which is more immediately pro- dudive of the diforder* To elucidate this opinion, I requefl: your attention to the phyfiology of the veffels and fluids of the brain in thofe peculiarly fubjed to this difeafe. The capacity and force of the heart, I obferve, in pro¬ portion to the fyftein of veflels, is greater at the beginning of life than at any afterperiod-; at the fame time a greater quantity of blood is contained in the arteries, proportionably to what is contained in the veins; and the veflfels of the head likewife- receive a greater quantity of blood, in proportion to the refl of the fyftem. — And in young perfons alfo, the lymphatick fyftem is fuller than in the old. We have, then, force in the arterial fyftem, quan¬ tity of blood in the fame fyftem, and determination to the veflfels of the head in thofe periods of life in which the hydrocephalus evidently prevails. Be- fides, that a plethorick ftate is apt to produce inflam¬ mation, feems demonftrated by the phoenomena ap¬ parent in adive hoemorrhagy, in which not only this ftate, but a fanguine temperament are obferved to take place. On thefe occaflons, before the blood flows, there are fome fymptoms of fulnefs and tendon about the part from which it is to ilfue. Some rednefs, fwelling, and fenfe of heat are per¬ ceptible in fuch parts as fall under view ; and, in the internal parts, from which blood is to proceed, there](https://iiif.wellcomecollection.org/image/b30794468_0029.jp2/full/800%2C/0/default.jpg)
