The pathological histology of bronchial affections, pneumonia and fibroid pneumonia : an original investigation / by A.G. Auld.

  • Auld, Alexander Gunn.
Date:
1891
Catalogue details

Licence: Public Domain Mark

Credit: The pathological histology of bronchial affections, pneumonia and fibroid pneumonia : an original investigation / by A.G. Auld. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    bands or laminae become resolved into bundles of fibrillae, which are in every way similar to the primary bundles of ordinary connective tissue. Hence the structure of hyaline cartilage resembles that of the cornea. And just as by the silver method, epithelial layers have been demonstrated in the substance of the cornea by Bubnoff, Heitzmann, and others, so in cartilage, layers of epithelial-like flat cells may be found. The protoplasmic communications which are said to exist between the cartilage cells are supposed by Thin to represent a system of communicating spaces formed by the apposition of two layers being incomplete, and this he also thinks the true explanation of Recklinghausen's saft- kancilchen in the cornea. The cartilage cells are analagous to the stellate cells of the cornea and of connective tissue generally, and in sections soaked in a solution of logwood and alum and subsequently treated with acetic acid, when the protoplasm has shrunk round the nucleus in the centre, fine glistening fibres can be seen to enter the ground substance. The lymphatics of the bronchi are numerous and import- ant. According to Klein they take origin in the mucosa as a network of fine capillaries, and are connected with larger vessels with valves situated in the submucosa and adventitia. In this latter situation they form a network, the individual vessels having for the most part a course parallel to the long axis of the bronchus. These peribronchial lymphatics are most numerous in that part of the adventitia next to the branch of the pulmonary artery, anastomosing there with the perivascular lymphatics, which latter also anas- tomose with those of the alveolar septa. Klein also states, what on careful examination may be verified, that in the mucosa proper the lymphatic arrangement is more that of a lymph-canalicular system, consisting of lacuna and anas- tomosing canals containing branching corpuscles; whereas
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