Animal physiology / by John G. M'Kendrick.

  • John Gray McKendrick
Date:
1877
Catalogue details

Licence: Public Domain Mark

Credit: Animal physiology / by John G. M'Kendrick. Source: Wellcome Collection.

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    termed endothelial cells. There are different varieties of epithelial cells, such as (i) flat, tesselated, or pavement epithelial cells from the Hning membrane of the mouth (fig. 32, a) ; (2) globular or secreting cells from the ultimate struc- ture of a gland (fig. 32, b); (3) columnar cells when they 32. ^^op of Saliva, shewing a, pavement or squamous epi- thelium from mouth; and d, salivary cells. Fig. 33.—Simple coating of Colum- nar Epithelium on a Mucous Membrane: a, cells; l>, inter- cellular matter; c, d, sub-cellular tissue. adhere by their sides, as found on the mucous lining of the intestinal canal (fig. 33) ; and (4) ciliated cells, which may be either globular or columnar in shape, and are distin- guished by having small processes or cilia at their free Fig. 34.—Ciliated Epithel- Fig. 35.—Row of Ciliated Epithelium Cells ial Cells from the finer from the trachea of a man: a, fibrous bronchial tubes. tissue ; 3, basement membrane ; c, d, cells in various stages of development; e, fully formed ciliated cells. border (figs. 34 and 35). The function of epithelium is partly protective and partly for secreting certain matters from the blood. 36. General Description of Endothelium,—Lining the
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