An experimental inquiry of the general nature of inflammation / by Charles Hastings.

  • Hastings, Charles, Sir, 1794-1866.
Date:
1821
Catalogue details

Licence: Public Domain Mark

Credit: An experimental inquiry of the general nature of inflammation / by Charles Hastings. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    TAJbLE I. ( Continued J Stimulus. 15 16 17 18 19 Attrition Attrition AtraosphericAir {Atmospheric] j Air, & dis- J j secting the | t. Covering. J Ammonia 20 Ammonia QX Ammonia 22 Ammonia 33 Ammonia 24 Nitric Acid 25 Nitric Acid Animal. A Dog A Dog A Cat A Dog The Rabbit A Horse Carotid Artery . Abdominal Aorta The Carotid A Horse A Dog A Dos: A Cat A Dog Part irritated. Femoral Artery Aorta Mesenteric Arteries The Carotid Femoral Artery Aorta Femoral Artery Aorta Effects produced. { In 5 minutes a ringlike appearance came on, and in 10 minutes the ves- sel moved in a tortuous manner. Pulsation much increased by irritation. ^All these vessels, which on first open- ing the abdomen could not be seen to move, in 10 minutes became tor- tuous, and a vermicular motion was L evident in them. 5 Permanent contraction came on in 5 l minutes. { Contractions and dilatations immediate- ( ly much increased. rhere was, when exposed, no dilatation during the systole of the heart; but, after the application of ammonia, dilatation and contraction became very evident. f On first appearance no dilatation or con- traction ; the artery measured 44 of an inch in circumference; ammonia was applied, and the pulsation be. came visible ; after three applications the vessel in one part contracted, and above it dilated; the following were the measurements—dilated part |$- of an inch, contracted part §$■ of an inch. (Pulsations became increased, and part ofthe vessels to which ammonia was applied, dilated ; proved by the mea- suring of ligatures drawn closely around the vessel. The ligature before the ammonia was applied measured ^§- of an inch, after appli- cation W of an inch. t Nearly a similar result. I (Contraction immediately produced; in J 10 hours again looked at the artery. > Contraction had disappeared. Che- L mical effect of acid visible. Vessel contracted much. A ligature applied before application of nitrous acid, measured U of an inch ; a liga- ture applied after acid measured |-^, of an inch.