. Elements of histology. Histology. ii8 Elements of Histology a Tlie ach entitia is an exceedingly thin connective- tissue membrane with a few elastic fibres. Tiie valves are semi-lunar folds of the endothelium and intima, 111. The lyiiipliatics in the tissues and organs form rich plexuses. They are tubular vessels, the wall of which is, like that of a capillary blood-vessel, a single layer of endothelial plates (Fig. 82). The lym- phatic is often many times wider than a blood capillary. Tlje endothelial plates are elon- gated, but not so long as in a Ijlood capillary, with more or less sinuou
. Elements of histology. Histology. ii8 Elements of Histology a Tlie ach entitia is an exceedingly thin connective- tissue membrane with a few elastic fibres. Tiie valves are semi-lunar folds of the endothelium and intima, 111. The lyiiipliatics in the tissues and organs form rich plexuses. They are tubular vessels, the wall of which is, like that of a capillary blood-vessel, a single layer of endothelial plates (Fig. 82). The lym- phatic is often many times wider than a blood capillary. Tlje endothelial plates are elon- gated, but not so long as in a Ijlood capillary, with more or less sinuous outlines : but this depends on the amount of shrinking of the tissue in which tlie vessel is embedded : when there is no shrinking in the tissue or in the vessel, the out- lines of the cells are more or less straight. The lymphatics are sup- ported by the tibrous connective tissue of the surrounding tissue, which does not, however, form part of their wall 112. The outline of the vessel is not straight, but more or less moniliform, owing to tlie slight dilatations present specimen of the mesentery l^elow and at the senii-lnnar of tne fro*" o. Artery; %. perivascular VfdceS: thcSC are folds of the iffendoibHiar'vaa "'"'''^ endothelial wall, and they are met with in great numbers. The vessel apjiears slightly dilated innnediately be- vond the valve—that is, on the side farthest from. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Klein, E. (Edward), 1844-1925; Edkins, John Sydney, b. 1865. Philadelphia : Lea Brothers
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphialeabro
