Physiological Anatomy of the Lungs

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                                to be drawn forwards by an assistant. 
In order to guard against the risk of injecting 
the Bronchial arteries and capillaries by the same fluid 
which is being forced into the pulmonary <s>artery<\s> veins 
a strong ligature should be passed around the root 
of the aorta, so as to prevent any injection, 
which might be forced into the left ventricle through 
the mitral valve, from finding its way into the 
aorta. These preliminaries having been arranged 
it is advantageous in the next place to pump a 
quantity of warm water through the pipe inserted 
into the pulmonary artery and to continue to do 
so until it passes out quite clear through the pipe 
inserted into the left auricular appendix - The object 
of this is to clear away the blood, which would 
otherwise remain in the capillaries of the Pulmonary 
vessels, and would prevent the coloured fluid from 
duly entering them - This done the suction pipe of 
each pump is to be placed in the vessel contain=
=ing the appropriate injection. If the intention 
is rather to shew the capillaries in connection with 
the pulmonary artery in preference to those <s>in<\s> more im=
=mediately in relation with the pulmonary veins, it 
will be desirable to use freshly precipitated chromate 

                            
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Manuscript details

Author
James Newton Heale
Reference
AP/43/4
Series
AP
Date
1860
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Physiological Anatomy of the Lungs, 1860. From The Royal Society, AP/43/4

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