On corpulence in relation to disease : with some remarks on diet / by William Harvey.
- Date:
- 1872
Licence: Public Domain Mark
Credit: On corpulence in relation to disease : with some remarks on diet / by William Harvey. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![sides are brouglit sliglitly nearer to each, other, and of course also to the central septum. If the explanation I have offered he correct, it is plain how facial palsy must interfere with volun- tary olfaction. With the first method, it interferes preventing active dilatation of the nostrils; with the second, by preventing the lateral compression which is re(]^uired to close the respiratory channel. At the same time, it will not materially interfere with the perception of flavours, for there is no hindrance to the passage of odours from the mouth upwards through the posterior uares. Besides these cases of facial palsy, there is yet another class of cases, by no means uncommon, in which tlie perception of flavour remains, while the perception of odours by the anterior nostril is lost. Here, again, we have an apparent contradiction to the statement that flavour is chiefly derived from smell. It is, however, not dififlcult to find an explanation. We have only to suppose, what is in itself highly probable, that the Schneiderian mem- brane has been so thickened by chronic inflammation as to bring the septum into contact with the middle turbinated bone, a result which, we have already seen, would require only an excessively slight thickening of the membrane; and secondly, that this thickening has not only thus cut off the olfactory from the re- spiratory channel, but that it has also obstructed the former and narrower of the two, the obstruction being](https://iiif.wellcomecollection.org/image/b21950520_0046.jp2/full/800%2C/0/default.jpg)
