An enquiry into the moving powers employed in the circulation of the blood : in a lecture, delivered at Newcastle, the 28th of December, 1773 ... / by Andrew Wilson.

  • Andrew Wilson
Date:
MDCCLXXIV [1774]
Catalogue details

Licence: Public Domain Mark

Credit: An enquiry into the moving powers employed in the circulation of the blood : in a lecture, delivered at Newcastle, the 28th of December, 1773 ... / by Andrew Wilson. Source: Wellcome Collection.

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    the heart above ipecified, that, each chamber is furniflied with a complete fet of valves, which, when the chambers contra# themfelves, exa#ly fhut and preclude any of the blood from being forced back again by the way that it entered. From this hiftorical account of the perpetual tranfa#ions of the heart, you muff diftin#ly per¬ ceive, that in the fubfequent difcourfe I do not pre~ tend to difprove it is by the a#ion and force of the contractions of the heart that the blood is thrown out of it into the arteries; But, that thefe a#ions ~ have little or no concern in fupporting the progrefs of the blood along the finer arteries, after it is thrown into the great one, and fiill lefs, in having any fenfible influence on its motion through the veins back again to the heart. THE circulation of the blood, as above-de- fcribed, was no fooner afcertained by the celebrated and learned Dr Harvey, than the force and energy of the mufcular contractions of the heart was firft uni- verfally fuppofed, and then admitted and acquiefced in almoft implicitly, as the only confiderable moving caufe of the whole: And this, with few variations or additions, continues to conflitute the fum of the doftrine of the circulation^ from the aera of Dr Harvey down to the prefent time.—The nature of this
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