Physiological Anatomy of the Lungs

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                                the leaflets of the pulmonary tissue from one another 
and are never found in the substance of a leaflet. 
These foramina if examined by a microscope 
will be found to be the open extremities of minute 
Bronchial tubes; it would be a mistake, however, 
to suppose that a considerable number compara=
=tively of the Bronchial tubes terminate thus 
by open mouths on the surface of the lungs<s>,<\s> 
and of the tubules; <s>by far<\s> the great majority 
of the terminal Bronchial tubes end by plunging 
into the leaflets, which constitute the  ultimate 
<s>Bronchial<\s> Pulmonary tissue, but some of the make their 
appearance on the outer and on the interlobular 
surfaces in the manner described, studding those 
surfaces at tolerably regular intervals   with foramina, and these foramina are 
in communication by means of the tubular pas=
=sages in the subpleural cellular tissue, with the 
longitudinal channels, which are found in the 
substance of the Pleura. The blood vessels 
derived from the pulmonary arteries and veins, 
which ramify in the Pleura are almost entirely 
distributed around the walls of these longitu=
=dinal channels. Without doubt these 
longitudinal channels are rudimental repre=


                            
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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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