Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ted upon each other, and, inclosedin a thin cellular capsule, in such a manner as to form smallknots or kernels, as they are sometimes called, when theybecome inflamed and swollen. In scrofulous persons, theseglands are exceedingly liable to become enlarged, particu-larly on the sides of the neck and in the armpits. 205. The contents of the lymphatics pass through thelymphatic glands, and undergo a proc
Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ted upon each other, and, inclosedin a thin cellular capsule, in such a manner as to form smallknots or kernels, as they are sometimes called, when theybecome inflamed and swollen. In scrofulous persons, theseglands are exceedingly liable to become enlarged, particu-larly on the sides of the neck and in the armpits. 205. The contents of the lymphatics pass through thelymphatic glands, and undergo a process of digestion, bywhich they are renovated and fitted for further use in theanimal economy. 206. The lactedls, or lymphatics of the alimentary canal,commence in the villi of the mucous membrane, as repre- How do they commence ? What is the appearance of the lymphaticsexternally? How are the valves formed? Of what use are the valves?How is the flow of lymph effected in reptiles ? What are lymphatic glands?What are they sometimes called when they become inflamed ? How are thecontents of the lymphatics affected by passing through these glands? Howdo the lacteals commence ? ABSORPTION. 95. &*. sented in fig. villus resem-bles in appearancea minute papillaor point in the mu-cous membrane,and is formed of anextremely delicatemembrane, termedepithelium whichcontains a plexusof lacteals, allforming a fine net- Fg. 3a—diagram of mucous membrane.—a, fa the 1 ±1, I, intervals of digestion; B, during digestion; a, a, WOnC in tne SUb- ent vessels; b,b, absorbent cells of a villus; c, c, pits 01, r. • follicles between the villi. mucous tissue, {fig. 39.) Each villus sends forth only r:.r—;.:,„-^,--T-- .._, one lacteal vessel, and this so small fc; ,/? ! %villi, they unite to form large trunks, \and, passing through the mesenteric Iglands, join in one common trunk the £^ ftthoracic duct, and may thus be com-pared to the roots of a tree, which Fig. 39.—app
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectphysiologicalprocess
