Carpenter's principles of human physiology . f the follicles of Lieberkuhn,with which the intestinal canal is fur-nished throughout its entire cells lining Briinners glandsjare columnar in form, but destituteof a membrane, and have a lateralprocess at their attached extremity,near which the nucleus is nucleus is not apparent in freshpreparations. The cell-contents consist of proteids, mucin, a substance whichis soluble in a 10 per-cent. solution of sodium chloride and is precipitableby alcohol, fat drops, and granules. The cells are small and cloudy infasting, but large
Carpenter's principles of human physiology . f the follicles of Lieberkuhn,with which the intestinal canal is fur-nished throughout its entire cells lining Briinners glandsjare columnar in form, but destituteof a membrane, and have a lateralprocess at their attached extremity,near which the nucleus is nucleus is not apparent in freshpreparations. The cell-contents consist of proteids, mucin, a substance whichis soluble in a 10 per-cent. solution of sodium chloride and is precipitableby alcohol, fat drops, and granules. The cells are small and cloudy infasting, but large and bright during digestion. The secretion of the glandscannot be obtained separately during life, but when dissected out it is foundthat their watery extract converts starch into dextrin and sugar,§ dissolvesfibrin, but not albumin at 35° C. (95° F.), and has no action on fats. Grutzner[|was unable to obtain any diastatic action with the extract, but found that itresembled pepsin in dissolving the proteids. The glands of Lieberkuhn are. Portions of one of Briinners Glands, from theHuman Duodenum. * Bernard and Kiithe (Canstatts Jahresbericht, 1861, p. 131) found that touching thepoint of entrance of the biliary duct into the intestine with an alkaline fluid had little or noeffect, -whilst brushing it lightly over with an acid solution immediately caused a discharge ofbile to take place. t Puky Akos and Schlemmer (Wien Akad. Sitzungsber., 1869, Band Ix. p. 31, and ), and Kenaut, Soc. de Biol. Mars 8, 1879, regard these glands as belonging rather tothe tubular than to the racemose type, whilst Schwalbe considers them to be intermediateto both. _ SeeMax Schultzes Archiv, Band viii. p. 92. Toldt ( Mittheil. der in Wien, Band i. p. 33) holds them to be racemose glands. J According to Schwalbe, Archiv f. Mic. Anat., Band viii. p. 92, 1871. § Krolow, Berl. Klin. Wochens., 1870, No. 1 H Pfliigers Archiv, Baud xii. p. 228. USE OF THE BILE IN INTESTINAL DIGESTION.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
