File:Some apostles of physiology - being an account of their lives and labours, labours that have contributed to the advancement of the healing art as well as to the prevention of disease (1902) (14784469575).jpg

Identifier: someapostlesofph00stir (find matches)
Title: Some apostles of physiology : being an account of their lives and labours, labours that have contributed to the advancement of the healing art as well as to the prevention of disease
Year: 1902 (1900s)
Authors: Stirling, William, 1851-1932
Subjects: Physiology Physiologists Physiology
Publisher: London : Priv. print. by Waterlow and sons limited
Contributing Library: West Virginia University Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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it in Pisa. In 1664 NicolasStensen—Steno—published a little tract, De Miisculis ObservationumSpecimen, which took the title of Elementorum Myologice Specimenin 1667. The work is illustrated by bold diagrams of the arrange-ment of fibres in various muscles. Stensen had a very fair knowledgeof the general build of a muscle. He even noticed the difference incolour between what we now know as the red and pale skeletalmuscles of the rabbit. Borelli, like Stensen, recognised that the fleshy part, and not thetendinous part, was the real contractile part. In the original figureit is marked caro. The mechanical problems of the circulation, of course, arrestedBorellis attention. He figures the general arrangement of themuscular fibres of the heart, and endorses the view of Harvey, thatthe blood is propelled by the systole of the ventricles, as in the actionof a winepress. Naturally, as a mathematician, he attempted toestimate the force, or mechanical value, of the systole of the ventricles.
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( 21 ) To do this he compares the volume of the heart muscle with that of thetemporal and masseter muscles and the weight they can support. Hemakes acute observations on the flow of blood in the arteries. Hisobservations in this regard bring one to the time of Stephen Hales,who was the first to measure accurately the blood-pressure in thearteries of a horse. Harvey also applied a numerical method in connection with theamount of blood passing through the heart, and his calculation formedpart of the evidence he adduces that led him to think that the bloodmight, as it were, move in a circle. Here is the passage :— But what remains to be said upon the quantity and source of the blood which thuspasses is of so novel and unheard of a character, that I not only fear injury to myselffrom the envy of a few, but I tremble lest I have mankind at large for my enemies, somuch doth wont and custom, that become as another nature, and doctrine once sownand that hath struck deep root, and respect fo

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