
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
- 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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