A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . ations here and therein their course (Fig. 158).] 197. The Lymph-Glands. The so-called lymphatic glands belong to the lymph are incorrectly termed glands, as they are much branchedlacunar labyrinthine spaces merely composed of adenoid tissue, andintercalated in the course of the lymphatic vessels. There are simple and compound lymph-glands. (1.) The simple lymph-glands, or, more correctly, lymph-follicles, are smallrounded bodies, about
A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . ations here and therein their course (Fig. 158).] 197. The Lymph-Glands. The so-called lymphatic glands belong to the lymph are incorrectly termed glands, as they are much branchedlacunar labyrinthine spaces merely composed of adenoid tissue, andintercalated in the course of the lymphatic vessels. There are simple and compound lymph-glands. (1.) The simple lymph-glands, or, more correctly, lymph-follicles, are smallrounded bodies, about the size of a pin-head. They consist of a mass of adenoidtissue (Fig. 161, A), , of a very delicate net-work of fine reticular fibres withnuclei at their points of intersection, and in the spaces of the mesh-work lie thelymph and the lymph-corpuscles. Near the surface, the tissue is somewhat denser,where it forms a capsule, which is not however a true capsule, as it is permeatedwith numerous small sponge-like spaces. Small lymphatics come directly intocontact with these lymph -follicles, and often cover their surface in the form of a. Fig. 161. Two lymph-follicles—A, a small follicle highly magnified, showing the adenoidreticulum; B, a follicle less highly magnified, showing injected blood-vessels. close net-work. The surface of the lymph-follicles is not unfrequently placed inthe wall of a lymph-vessel, so that it is directly bathed by the no direct canal-like opening leads from the follicle into the lymphaticstream, in relation with it a communication must exist, and this is obtained by thenumerous spaces in the follicle itself, so that a lymph-follicle is a true lymphaticapparatus (Briicke) whose juices and lymph-corpuscles can pass into the nearestlymphatic. The follicles are surrounded by a net-work of blood-vessels which LYMPHATIC GLANDS. 407 sends loops of capillaries into their interior (Fig. 161, B). We may assume thatlymph-corpuscles pass f
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
