by: lena andrist and katie donelson. -responsible for the removal of interstitial fluid from...
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By: Lena Andrist and Katie Donelson
LYMPHATIC SYSTEM
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-Responsible for the removal of interstitial fluid from tissues.
-Absorbs and transports fatty acids from the digestive system.
-Transports white blood cells to and from the lymph nodes into
the bones.
-An important role of the Lymphatic system is to return plasma
proteins into the bloodstream.
-They are a defense mechanism against the body, they filter out
micro organisms and foreign substances.
FUNCTION OF LYMPHATIC SYSTEM
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-Lymph nodes; they filter lymph and fight infection
-Thoracic duct; they return cleansed lymph to blood supply
-Thymus gland; generates T cell lymphocytes
-Spleen; lymphatic tissues filter blood and removes cellular debris
-Galt; surrounds intestines, counteracts infection and absorbs fats
-Lymphatic vessels; act as reservoirs for plasma and other substances
-Bone Marrow; generates B cell lymphocytes
ORGANS OF LYMPHATIC SYSTEM
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-Located in under arms, groin, and neck
-Children between the ages of 10 to 12 years old usually have larger
lymph nodes.
-The lymph nodes filter and monitor the lymph for foreign particles.
-When you have a cold or any other infection your lymph nodes, may
swell, as lymphocytes fight germs
-Human lymph nodes are bean-shaped
-They range in size from a few millimeters to about 1–2 cm in their
normal state
-Lymph nodes are guards of B, T, and other immune cells
LYMPH NODES
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-A two lobed organ located in upper chest
-The thymus gland is a pink-grey organ that lies underneath
the top of the breast bone.
-It’s primary function is to mature lymphocytes
-The T cells travel from the bone marrow to the thymus
gland to mature
-The thymus also produces a hormone called thymosin
-After the age of puberty it gradually becomes smaller.
THYMUS
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-Located in the upper far left part of the abdomen, to the
left of the stomach
-It acts as a filter for blood
-The spleen also helps fight certain kinds of bacteria
-It is the largest single mass of lymphoid tissue in the body
-It does however sometimes need to be removed: it can
suffer hidden injury
SPLEEN
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Bone marrow plays an important role in this system;
Bone marrow produces lymphocytes that are then transferred to the thymus to mature.
This is why when a person who has an illness where bone marrow is destroyed the persons immune system is very immensely weakened (sudden lack of white blood cells)
BONE MARROW
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-In the lymph nodes there are armies of white blood cells
(lymphocytes) that destroy germs
-There are two kinds of lymphocytes; B-cells and T-cells
-B-cells develop into plasma cells that make antibodies to
attack bacteria
-There are two kinds of T cells; Helper and Killer
-Helper T-cells alarm killer T-cells to multiply
-Killer T-cells destroy the cells that the helpers have
identifited
CELLS
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-A type of blood cancer
-Happens when lymphocytes begin behaving abnormally
-2 forms Hodgkin and Non Hodgkin
-The main difference between the two is in the specific
lymphocyte each involves.
-Lymphoma typically is present as a solid tumor of lymphoid cells
-This cancer can be curable depending on the type, and stage of
the disease
-30-60% of patients with an aggressive form of Lymphoma can be
cured
LYMPHOMA
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-Is an accumulation of lymphatic fluid that causes swelling.
-Mostly in arms and legs
-Develops when lymphatic vessels are missing, impaired, damaged or when lymph nodes have been removed
-Symptoms include; swelling of limbs, feelings of heaviness or tightness in limbs and restricted range of motion.
-Treatment includes; complex decongestive therapy.
-Longer term infection of elephantitis can lead to
Lymphoedema.
LYMPHOEDEMA
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-This system consists of organs, ducts, and nodes
The lymphatic system is sometimes called your body’s sewer
-The Lymphatic system is network of “pipes” that drains waste from the
cells
-These ‘pipes’ of the lymphatic system are called lymphatics or lymph
vessels
-The lymphatic system removes excess fluid, and waste products from the
spaces between the cells
FUN FACTS
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http://www.houseandhome.org/lymphatic-system-facts
http://www.funtrivia.com/en/SciTech/Lymphatic-System-18883.html
http://www.encyclopedia.com/topic/lymphatic_system.aspx
http://www.lymphnotes.com/article.php/id/151/
http://www.nlm.nih.gov/medlineplus/ency/article/003097.htm
http://www.lymphomation.org/lymphatic.htm
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