Clinical lectures on the principles and practice of medicine . different ideas put forth by experimental-ists as to the function of the epithelium in digestion. Some maintainthat it is cast off so as to admit of endosmose through the naked villus;whilst others maintain that endosmose is carried on through the agencyof the epithelial cellsthemselves in situ,whichI believe to be the cor-rect doctrine. In manthe epithelial cells areeasily separated, andtheir separation consti-tutes a morbid state ofgreat importance, be-cause if, as I suppose,they be the organs ofprimary assimilation,their removal
Clinical lectures on the principles and practice of medicine . different ideas put forth by experimental-ists as to the function of the epithelium in digestion. Some maintainthat it is cast off so as to admit of endosmose through the naked villus;whilst others maintain that endosmose is carried on through the agencyof the epithelial cellsthemselves in situ,whichI believe to be the cor-rect doctrine. In manthe epithelial cells areeasily separated, andtheir separation consti-tutes a morbid state ofgreat importance, be-cause if, as I suppose,they be the organs ofprimary assimilation,their removal mustinterfere with nutri-tion. This I consider Pig. be one of the reasons why chronic diarrhoeas, and more especially Fig. 430. Vascular congestion and sugillation of the mucous membrane of thesmall intestine in cholera, a and b, Congested tortuous vessels in villi, which aredeprived of epithelium ; c, The veins only congested in four villi; d, Extravasation ofblood below the basement membrane, and around the glands of Lieberkuhn.—(Wedl.) 50 532 DISEASES OP THE DIGESTIVE SYSTEM. cholera, in which disorder the rice-water stools consist chiefly of serumcontaining desquamated epithelium, are so prostrating to the course the interference with nutrition so occasioned will be in propor-tion to the extent of mucous membrane affected. 2. Great congestion of the vascular plexus, which ramifies in thevilli and around the glands, is one of the most common appearances seenafter death in the intestinal mucous membrane; it is often associatedwith extravasations of blood more or less extensive. This lesion maybe conjoined with all the others to which this texture is liable, and is atonce visible both to the naked eye and on microscopic observation. Inall cases of acute diarrhoea, dysentery, and in cholera, this morbidchange may be recognised. 3. Exudation may occur below the basement membrane, infiltratingthe areolar texture between it and the mucous coat, occupyin
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
