Physiological Anatomy of the Lungs

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                                divisions which constitute the lobulettes are quite 
arbitrary and may be made in almost any 
direction, and into as many subdivisions as may 
be desired; since each lobulette is only a congeries 
of the ultimate leaflets which again are small 
bodies, separated partially from each other <s>partially<\s> by a fold 
or sulcus of the fibrous tissue, common to the 
whole tissue by which they are invested. 
The parenchymatic structure of the lungs is 
wholly made up by an aggregation of these leaflets 
into lobulettes; of the lobulettes again into lobules, 
of the lobules into groups of lobules, and of the 
groups of lobules into lobes - 
in the surface of the lungs, these leaflets 
are so arranged as to represent a pavement 
consisting of tiles of a somewhat quadrilateral 
figure - The boundaries of these quadrilateral 
bodies (as ay be seen in the drawing in series C 
N<sup>o<\sup> 4 figure a) correspond with the fissures which 
separate one leaflet from those which surround it. 
The external or upper surface of each of these 
quadrilateral bodies is covered, by an exceed=
=ingly vascular distribution of the pulmonary 
artery, by which it is almost entirely ocupied, 
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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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