what are the three main parts of the lymphatic system and what is their purpose?
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Lymphatic vessels transport lymph to lymph nodes. These structures filter lymph of pathogens, such as bacteria and viruses. Lymph nodes also filter cellular waste, dead cells, and cancerous cells. Lymph nodes house immune cells called lymphocytes.
170212
['Lymphatic Vessels. their function is to pick up excess tissue fluid, called lymph and return it to the bloodstream.', 'Lymphnodes. ... ', 'Other Lymphatic Organs. ... ', 'Spleen. ... ', 'Thymus. ... ', 'Tonsils. ... ', "Peyer's Patches. ... ", 'Bone Marrow.']
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All connective tissue consists of three main components: fibers (elastic and collagenous fibers), ground substance and cells. Not all authorities include blood or lymph as connective tissue because they lack the fiber component.
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['Cell.', 'Life.', 'Blood.', 'Connective tissue.', 'Fluid.', 'Lymph.', 'Epithelium.', 'Membrane.']
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['Circulatory system: heart, blood, blood vessels, and lymphatics.', 'Digestive system: esophagus, stomach, small intestine, and colon.', 'Endocrine system: pituitary, thyroid, ovaries, and testes.', 'Immune system: organs (including lymphatics and spleen), special. ... ', 'Integumentary system: skin, hair, nails, and sweat glands.']
110162
The lymphatic system consists of all lymphatic vessels and lymphoid organs. For example, the lymph nodes, spleen, thymus as well as the lymphatic tissue found in the small intestine (Peyer's patches) and throat (adenoid tonsils, palatine and tubal tonsils), to name a few, all represent lymphatic organs.
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The lymphatic system is a network of very small tubes (or vessels) that drain lymph fluid from all over the body. The major parts of the lymph tissue are located in the bone marrow, spleen, thymus gland, lymph nodes, and the tonsils. The heart, lungs, intestines, liver, and skin also contain lymphatic tissue.
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The general structure of lymphatic vessels is similar to that of blood vessels since these are the only two types of vessels in the body. While blood and lymph fluid are two separate substances, both are composed of the same water (plasma or fluid) found elsewhere in the body.
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17.2 Lymphatic tissue In humans one distinguishes between primary and secondary lymphatic organs. In the primary lymphatic organs the lymphocytes mature to become immunocompetent cells and emigrate into the secondary lymphatic organs. There they are responsible for mounting the specific defense of the body.
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Lymph nodes. Lymph nodes (or lymph glands) are part of the body's immune system. They filter harmful substances like bacteria and cancer cells from your body, and help fight infections. They also play an important role in cancer diagnosis, treatment and prognosis.
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The red bone marrow is a key element of the lymphatic system, being one of the primary lymphoid organs that generate lymphocytes from immature hematopoietic progenitor cells. The bone marrow and thymus constitute the primary lymphoid tissues involved in the production and early selection of lymphocytes.
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The network of lymphatic vessels includes multiple interposed lymph nodes, small lentil- or bean-sized organs. They serve as filter stations for the lymph of a certain body region and contain specials cells of the immune system, the lymphocytes, which fight infections attacking the body.
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Lymph is a fluid that circulates throughout the body in the lymphatic system. It forms when tissue fluids/blood plasma (mostly water, with proteins and other dissolved substances) drain into the lymphatic system. It contains a high number of lymphocytes (white cells that fight infection).
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['Circulatory system: ... ', 'Digestive system and Excretory system: ... ', 'Endocrine system: ... ', 'Integumentary system / Exocrine system: ... ', 'Immune system and lymphatic system: ... ', 'Muscular system: ... ', 'Nervous system: ... ', 'Renal system and Urinary system.']
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The main parts of the system are the heart, arteries, capillaries and veins. The circulatory system does a very important job in your body. It carries oxygen and essential nutrients to all cells around the body in arteries and carries the waste products and carbon dioxide in veins.
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The most important function of the lymph nodes is that they serve as multiplication sites for lymphocytes; phagocytic cells within them remove bacteria, viruses, and the like from the lymph stream before it is returned to the blood.
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LYMPHATIC CIRCULATION The lymph is moved through the body in its own vessels making a one-way journey from the interstitial spaces to the subclavian veins at the base of the neck. Since the lymphatic system does not have a heart to pump it, its upward movement depends on the motions of the muscle and joint pumps.