On the Motion of the Heart and Blood in Animals |
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admit anastomosis anatomical anatomists aorta appears Aristotle beat become blood passes branches cause cavities channels CHAPTER charge of blood chyle circulation colour compressed contained contraction contrary course demonstrated diastole dilated diseases dissection distended divided embryo Erasistratus escape experiment extremities fibres filled finger flesh fluid foetus foramen force fuliginous vapours further Galen greater Harvey's heart and arteries Heart and Blood heat Hieronymus Fabricius impelled impulse incessantly influx innate heat kind larger learned left auricle left ventricle ligature liver living animal lungs manner mesentery motion moved nature nourished nutrition observed organ orifice passage perceive perfect phlebotomy Physicians porosities present propelled pulmonary artery pulmonary veins pulsate pulse quantity of blood reason receive reflux regurgitation respiration right auricle right ventricle Riolanus seen sense septum spirits stroke structure swell systole things tion tricuspid valves truth valves vena cava vena portæ vessels vols whence whilst WILLIAM HARVEY
Popular passages
Page 48 - I began to think whether there might not be A MOTION, AS IT WERE, IN A CIRCLE.
Page 37 - Had anatomists only been as conversant with the dissection of the lower animals as they are with that of the human body, the matters that have hitherto kept them in a perplexity of doubt would, in my opinion, have met them freed from every kind of difficulty.
Page 33 - ... wheel gives motion to another, yet all the wheels seem to move simultaneously; or in that mechanical contrivance which is adapted to firearms, where the trigger being touched, down comes the flint, strikes against the steel, elicits a spark, which falling among the powder, it is ignited, upon which the flame extends, enters the barrel, causes the explosion, propels the ball, and the mark is attained — all of which incidents, by reason of the celerity with which they happen, seem to take place...
Page 21 - These views as usual, pleased some more, others less; some chid and calumniated me, and laid it to me as a crime that I had dared to depart from the precepts and opinions of all anatomists; others desired further explanations of the novelties, which they said were both worthy of consideration, and might perchance be found of signal use. At length, yielding to the requests of my friends, that all might be made participators in my...
Page 22 - IN the first place, then, when the chest of a living animal is;laid open and the capsule that immediately surrounds the heart is slit up or removed, the organ is seen now to move, now to be at rest ; — there is a time when it moves, and a time when it is motionless.
Page 20 - WHEN I first gave my mind to vivisections, as a means of discovering the motions and uses of the heart, and sought to discover these from actual inspection, and not from the writings of others, I found the task so truly arduous, so full of difficulties, that I was almost tempted to think, with Fracastorius, that the motion of the heart was only to be comprehended by God.