Term Papers on The Lymphatic System

Term Paper Title	The Lymphatic System
# of Words	466
# of Pages (250 words per page double spaced)	1.86

The Lymphatic System

     The Lymphatic System is very important.  It helps with the
Cardiovascular system, and our immune systems. The Lymphatic System is made up
of two semi-independent parts.  One is a network of lymphatic vessels.  The
other part is various lymphoid tissues and organs all over the body.  The
functions of the Lymphatic System transporting fluids that have escaped from the
blood vascular system, and the organs house phagocytic cells and lymphocytes.
     Lymphatic vessels are an elaborate system of drainage vessles that
collect the excess protein-containing fluid and returns it to the bloodstream..
Once an interstitial fluid enters the lymphatics it is called lymph.  The
lymphatic vessels form a one way system in which lymph flows only towards the
heart.  This entire transport sytem starts in the lymph capillaries.  These are
very commmon, usually occur in the places blood capillaries occur.  Lymph
capillaries are not found in bone, teeth, bone marrow, and entire central
nervous system.  Lymphatic capillaries are very permeable. The endothelial cells
that make up the walls of the capillaries are not tightly joined.  Filament
anchor the endothelium cells so they can expand.  Pathogens can spread through
the body through the lymphatic stream.
     There are many cells in the lymphoid tissue.  One type is lymphocytes,
which are reffered to often as T or B cells. Plasma cells are antibody-producing
offspring of B cells. Macrophages are phagocytes that help out with immunity.
Reticular cells are cells that form the lymphoid tissue stroma.  Thes cells are
very imp...

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