The laws and mechanics of circulation, with the principle involved in animal movement . eath the muscularis mucosce (not given in the picture) at thebase of the villi (a, b), which rapidly expand into great lymph-chambers (c), in contact with the muscular cylinder (g, h),through which the efferent vessels (d, d) pass to get beneaththe peritoneal layer of the gut in order to reach the mesen-teric glands, situated in the folds of the mesenteric ligament. * A Text-Book of Physiology, p. 819. M. Foster, M. A., M. D., F. R. S., Prae-lector in Physiology and Fellow of Trinity College. Cambridge,f Lu
The laws and mechanics of circulation, with the principle involved in animal movement . eath the muscularis mucosce (not given in the picture) at thebase of the villi (a, b), which rapidly expand into great lymph-chambers (c), in contact with the muscular cylinder (g, h),through which the efferent vessels (d, d) pass to get beneaththe peritoneal layer of the gut in order to reach the mesen-teric glands, situated in the folds of the mesenteric ligament. * A Text-Book of Physiology, p. 819. M. Foster, M. A., M. D., F. R. S., Prae-lector in Physiology and Fellow of Trinity College. Cambridge,f Ludwig Teichmann, Das Saugader System. Leipzig. 1861. MUSCULAR FORCE FOR THE LYMPH. 257 Finally, that the lymph-vessels and chambers are muscu-lar organs provided with valves for obviating reflux, andfurnished with nerves from the adjacent ganglionic layers(Meissners and Auerbachs, which we will come to presently)for producing the rhythmical expansions and contractionswhich occur in them, and which also connect with the greatpumping movement in the muscular cylinder itself, the nerves. Fig. 99.—Perpendicular Section through one of Peyers Patches in the lower part of theIleum of the Sheep.—Teichniann. a, a, Lacteal vessels in the villi; 6, 6, superficiallayer of the lacteal vessels (rete angustum) ; c, c, deep layer of the lacteals (reteamplum) ; d, d, efferent vessels provided with valves ; e, LieberMihns erlands ; /,Peyers glands ; g, circular muscular layer of the wall of intestine; h, longitudinallaver ; i, peritoneal layer. connecting through and through, the same as in the caseof the villus, gland-structures and blood-vessels for produc-ing simultaneous action throughout, the principle being thesame. Bur once within this system of reservoirs, it is easy toperceive that the force in the gut is available for compellingthe lymph through the channels, and no power can preventit but paralysis in the gut itself, as must appear obvious. Inother words, every contraction of the m
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