On the treatment of deafness : connected with enlargement of the tonsils and other diseases of the throat, and on the consequences arising from the removal of those glands / by William Harvey.

  • Harvey, William, 1807-1876.
Date:
1851
Catalogue details

Licence: Public Domain Mark

Credit: On the treatment of deafness : connected with enlargement of the tonsils and other diseases of the throat, and on the consequences arising from the removal of those glands / by William Harvey. Source: Wellcome Collection.

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    of the mucous membrane of the tongue indicates the condition of that of the stomach and intestinal canal. All the mucous membranes have, likewise, an extraordinary connexion with the respiratory- movements; thus, irritation of the mucous mem- brane of the nose produces sneezing; irritation in the pharynx, oesophagus, stomach, or intestines, excites the concurrence of the respiratory move- ments ; vomiting, or violent irritation of the rectum, bladder, or uterus, gives rise to a concurrent action of the respiratory muscles, so as to effect the invo- luntary expulsion of the fasces, urine, or foetus;— irritation of the mucous membrane of the larynx, trachea, or lungs, or even itching from irritation of the Eustachian tube, excites coughing. The mucous membrane, like the skin, is com- posed of three layers; the first, the epithelium, the cuticle of the membrane; the second layer is the proper mucous, or papillary layer, analogous likewise to the papillary layer of the skin. This is the sur- face which secretes and produces the epithelium. The remaining layer, the fibrous or submucous, similar to the corium of the skin, is intended to afford support to the papillary layer. In the loose cellular tissue connecting the two latter layers, are placed the glands or follicles, which are peculiar to the mucous membrane. These glands are of two kinds, simple and compound. Hente thus describes the simple follicles:— In almost