Attn on a letter stands for attention and denotes the attention line. The attention line specifies who within an organization should receive a correspondence or package.
The lymph vessels carry lymph from the tissues through the lymph nodes, where lymphocytes neutralize or kill and macrophages consume pathogens, then deliver the cleansed fluid to the blood.he lymphatic capillaries merge into the afferent lymphatics, somewhat larger lymph vessels that carry the lymph among the lymph nodes. The lymphatic capillaries in the SMALL INTESTINE, called lacteals, are uniquely able to absorb the fatty products of digestion, which they ultimately deliver to the blood.
1. The macrophages and lymphocytes within lymph nodes filter lymph and remove bacteria and cellular debris before lymph is returned to the blood. 2. Lymph nodes are also centers of lymphocyte production; these cells function in immune surveillance.p. 386). A. The hydrostatic pressure of tissue fluid drives the entry of lymph into lymphatic capillaries. B. Forces that move blood in veins (skeletal muscle contraction, breathing movements, and contraction of smooth muscle in the walls of lymphatic trunks) are the forces that propel lymph through lymphatic vessels.