arteries and veins have been injected with different
colour, is the fact, that the mucous membrane of the
Bronchial tubes of every part of the lungs, is of the
same colour as that of the injection which has been
passed into the pulmonary veins and is not like
the remainder of the lung made up of an equal ad=
=mixture of capillaries, containing both colours;-
so that if the pulmonary arteries have been perfectly
injected with vermilion and the pulmonary veins
with Chromate of Lead, the mucous membrane
will be decisively and uniformly yellow, and this
yellow colour will be caused by the plexus, which lines
the Bronchial tubes being fully injected by that fluid
which entered the pulmonary veins; and if the
colour of the injection has been reversed then also
the colour of the mucous membrane will be reversed, -
and the contrast will be as striking in the opposite
way: the mucous membrane will then be uni=
=formly red. It will be impossible to impart
anything like the same depth of colour to the
mucous membrane, by any amount of injection
by the Broncial artery, and it is only by the most
complete injection possible of this latter artery, that
any vessels in communication with it can be made to shew themselves
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Manuscript details
- Author
- James Newton Heale
- Reference
- AP/43/4
- Series
- AP
- Date
- 1860
- IIIF
-
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Cite as
Physiological Anatomy of the Lungs, 1860. From The Royal Society, AP/43/4
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