Physiological Anatomy of the Lungs

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                                whenever the Bronchial tube is of a sufficiently 
large size to have an accompanying Pulmo=
=nary vein, this is placed (as universally) under=
=neath the Bronchial tube - <s>A<\s> The diagrams Series C 
No6 & No7 shew<s>s<\s> the relative positions which the pulmo=
=nary arteries and veins hold with reference 
to the Bronchial tube, the relation also of the 
Bronchial vessels is shewn in the <s>same<\s> <s>the<\s> diagram C No6. 
The smaller Bronchial tubes and pulmonary 
arteries are not accompanied by a corresponding 
Pulmonary vein; as this is placed at a distance 
being found in the interlobular fissure which 
separates the lobules; but as the pulmonary veins 
increase in size they each approach <s>a<\s> one of the larger 
Bronchial tubes; and then run in apposition with its 
under surface. 
In following the course above described the Pul=
=monary artery simply continues to divide again 
and again, giving off its branches on either 
side precisely as the Bronchial tubes do. No 
sort of capillary distribution to any of the sur=
=rounding tissues is made in any part of its course, 
every portion of it reaches the ultimate leaflets of 
the lungs, and it does not give any branches of 
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Manuscript details

James Newton Heale
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Cite as

Physiological Anatomy of the Lungs, 1860. From The Royal Society, AP/43/4



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