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.
the main function of lymph nodes is to act as a drainage system by absorbing and expelling proteins dead cells bacteria and other waste products from the body basically the y clean and filter the lymph before it is returned to the bloodo filter lymph they filter bacteria and other foreign materials out of lymph and expose them to lymphocytes and macrophages that can engulf them these cells multipl y in response to accumulation of such materials which is why lymph nodes swell during infections