Physiological Anatomy of the Lungs

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                                entirely of minute Bronchial tubes, so that each air-cell, 
according to these authorities, is neither more 
not less than the termination or blind extre=
=mity of a Bronchial tube and consequently 
if that were true it would result that no dis=
=tinction could be drawn as to what part was 
pulmonary tissue and what Bronchial tube. 
Nothing could possibly be more incorrect - 
A late author has endeavoured to prove that 
each ultimate Bronchial tube terminates in 
a kind of trefoil and that an arrangement to 
which he gives the name 'alveoli' is connected 
with them. This is entirely a mistake as nothing 
of the kind exists - These errors arise from 
the attempt to make out the structure of the lungs 
by examining specimens which have been inflated and dried - When the lung is thoroughly 
moist, it can be fully distended by forcing air 
into the tubes, and the air will have <s>no<\s> but little tendency 
to escape from its meshes so long as that mois=
=ture is not diminishes; but the instant 
the lung<s>s<\s> becomes in the slightest degree dryer 
the air penetrates through the tissue in every 
direction and the character of the spaces where 
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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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