A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . The compound lymph-glands—the so-called lymphatic glands—representa collection of lymph-follicles, whose form is somewhat altered. Every lymph -gland is covered externally with a connective-tissue capsule (Fig. 162, c), which con-tains numerous non-striped muscular fibres (0. Heyfelder). From its inner surface,numerous septa and trabeculaj (tr) pass into the interior of the gland, so that thegland-substance is divided into a large number of compartment
A manual of human physiology, including histology and microscopical anatomy, with special reference to the requirements of practical medicine . The compound lymph-glands—the so-called lymphatic glands—representa collection of lymph-follicles, whose form is somewhat altered. Every lymph -gland is covered externally with a connective-tissue capsule (Fig. 162, c), which con-tains numerous non-striped muscular fibres (0. Heyfelder). From its inner surface,numerous septa and trabeculaj (tr) pass into the interior of the gland, so that thegland-substance is divided into a large number of compartments. These com-partments in the cortical portion of the gland have a somewhat rounded form, andconstitute the alveoli, while in the medullary portion they have a more elongatedand irregular form. [On making a section of a lymph-gland we can readily dis-tinguish the cortical from the medullary portion of the gland.] All the compart-ments are of equal dignity, and they all communicate with each other by meansof openings, so that the septa bound a rich net-work of spaces within the gland,which communicate on all sides with each other. . Fig. 162. Diagrammatic section of a lymphatic gland—a, I, afferent; e, I, efferent lymphatics;C, cortical substance; M, reticular cords of medulla; I, s, lymph-sinus; r,capsule, with trabeculse, tr. These spaces are traversed by the follicular threads (Fig. 163,/, /). These repre-sent the contents of the spaces, but they are smaller than the spaces in which theylie, and do not come into contact anywhere with the walls of the spaces. If weimagine the spaces to be injected with a mass, which ultimately shrinks to one-halfof its original volume, we obtain a conception of the relation of these follicularthreads to the spaces of the gland. The blood-vessels of the gland (b) lie withinthese follicular threads. They are surrounded by a tolerably thick crust of adenoidtissue, with very fine meshes (x, x) filled with lymph-corpuscles, and with its su
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectphysiology, bookyear1
