On the necessity for contracting cavities between the venous trunks and the ventricles of the heart : on the use of venous sinuses in the head : on the wonderful provision made for the transition from the foetal to the breathing state, on palpitation, on death and on life, with reflections on the treatment of animals.

  • John Walker
Date:
1799
Catalogue details

Licence: Public Domain Mark

Credit: On the necessity for contracting cavities between the venous trunks and the ventricles of the heart : on the use of venous sinuses in the head : on the wonderful provision made for the transition from the foetal to the breathing state, on palpitation, on death and on life, with reflections on the treatment of animals. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    [ 13 ] / previous effe&ive fyftoles and confequcntly continuing its courfe to the heart, an accumulation may at length take place retrograding from the right fide of the heart (per- haps from the mouth of the left ventricle, as the right ven- tricle does not require decarbonated blood to ftimulate it to the neceffary contraction) by which the venous finufes, at firft diminifhed by firong inspiration, may become fwollen. k. And thus, at laft, compreflion of the brain, with blacknefs of the face, tinnitus aurinm, &c. not to be re-< lieved but by complete expiration of the now lethal air in the lungs, and fucceedingrefpirations of frefh air. B. a. The contents of the cranium alfo fwell, and the pulfe quickens, under watching and ex- ercife, till at length the refection of lleep is folicit- ed. b. If there be conge (lion of blood on the right fide of the heart, the neceffity of deep infpiration is yielded to, and marked, by a figh or a yawn: c. The organs of the fenfes and mufcles of voluntary motion relax. d. There is no longer that compreflion on the fangui- ferous fyftem of vefiels on the trunk and in the limbs; e. The bisod confequently retires from the head, f And the brain lofts the compreflion neceflary to a Hate of wakefulnefs. g. The organs of the vital and natural functions parti- cipate in the relaxation and perform their aCtions with diminifhed force, h. Till the organs of the animal powers having acquir- ed new tone or excitability, thofe of the vital and natural powers fympathife with them, i. A larger quantity of blood is determined to the head, k. And the whole man awakes into renewed life and a- mation. 16. Different caufes of motion. A. a. To the ventricles belongs the duty of propelling ^he blood to the different parts of the body, and in a certain