the term âalumigraphâ in an article published in the Spring, 2002, edition of. Printmaking Today (vol. 11, no. 1, pp. 28-29), to refer to a rather different process. So, I have decided in fairness to switch to the terms âfoilographâ and. âfoilographyâ instead.
Lymph vessels. Walled, valved structures that carry lymph around the body. Lymph nodes. Small bean-shaped glands that produce lymphocytes, filter harmful substances from the tissues, and contain macrophages, which are cells that digest cellular debris, pathogens and other foreign substances. Major groups of lymph nodes are located in the tonsils, adenoids, armpits, neck, groin and mediastinum.
It produces lymphocytes, is important for T cell maturation (T for thymus-derived). Spleen. The spleen is an organ in the upper left abdomen, which filters blood, disposes of worn-out red blood cells, and provides a 'reserve supply' of blood. It contains both red tissue, and white lymphatic tissue. Different parts of the the spleen specialize in different kinds of immune cells.