Physiological Anatomy of the Lungs

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                                series C No2, fig a & fig. b. - 
<s>In both of the better illustrations, namely<\s> This is further illustrated in Series C 
No2 and No3; and in both of these, two drawings are made, by which 
the 
distributions of the pulmonary arteries and veins 
are brought into permanent contrast with one another, 
by the colours, with which the arteries and veins 
were respectively injected, being transposed; in 
one, the arteries are red and the veins yellow, and 
in the other the arteries are yellow and the veins red. 
The minuter capillaries are more clearly shewn 
by the yellow injection, and by adopting this plan 
of transposition the characters of those directly 
in communication with both the arteries and the veins 
can be studied. It will be <s>arranged<\s> observed that the 
capillaries from which the veins directly take their 
origin and arranged in tufts, while those belonging 
more strictly to the arteries are spread out in a 
more even and uniform reticulation. 
It will also be seen that there is in the upper sur=
=face of each lobule a rather more extensive ra=
=mification of the capillaries directly continuous 
with the arteries and thus the capillaries of the veins 
are arranged around the margins of each leaflet, and 
speedily dip down into the sulci between the leaflets 
to form larger veins in the interlobular spaces - This 
is well shewn in series C No4 fig a. 

                            
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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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