An inquiry into the nature and causes of epilepsy : with the function of the spleen; and the use of the thyroid body ... / John Jackson.

  • Jackson, John, -1855.
Date:
1842
Catalogue details

Licence: Public Domain Mark

Credit: An inquiry into the nature and causes of epilepsy : with the function of the spleen; and the use of the thyroid body ... / John Jackson. Source: Wellcome Collection.

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    or less incapable of stimulating its right cavities, and which the ventricle therefore refuses to propel or very imperfectly propels, through the lungs ; the immediate effect of which necessarily is, that disten- sion more or less excessive of the right cavities is produced, and the further ingress of blood from both venae cavae either greatly impeded, or altoge- ther denied : and secondly, the quantity of blood supplied to, and the force with which it enters the auricle by the inferior auricular opening, being suddenly and temporarily augmented by a force greater than that with which the blood descends into that cavity from the superior cava; and which sudden and temporary augmentation can only be effected by an inordinate rush of blood from the hepatic veins : then, in this case as in the former, the right cavities, but more especially the auricle, would suffer undue distension, ingress by the superior cava would be prevented, and cerebro-spinal congestion would ensue, and endure so long as the rush into the auricle from the hepatic veins continued. But what is there to cause an inordinate rush of blood into the auricle from the hepatic veins ? In order to answer this question it will be necessary to consider, first the vessels themselves ; and secondly, to ascertain the nature of that power by which the blood is pro- pelled through them to the inferior cava and auricle. The hepatic veins consist of two or three large veins, called from their size venae caret hepatiem,* * 1 here are two Ejected preparations in the Museum of the Royal College of Surgeons, Nos. 18 and 19 of Part vi., which