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Definition: lymphatic system from Hawley's Condensed Chemical Dictionary

The tissues and organs, including the bone marrow, spleen, thymus, and lymph nodes, that produce and store cells that fight infection and disease. This system also has channels that carry lymph.

lymphatic system

From The Columbia Encyclopedia
(lĭmfăt'ĭk), network of vessels carrying lymph, or tissue-cleansing fluid, from the tissues into the veins of the circulatory system. The lymphatic system functions along with the circulatory system in absorbing nutrients from the small intestines. A large portion of digested fats are absorbed via the lymphatic capillaries. Like the blood circulatory system, the lymphatic system is composed of fine capillaries that lie adjacent to the blood vessels. These merge into larger tributaries known as trunks, and these in turn merge into two still larger vessels called ducts. The thoracic and right lymphatic ducts empty into the venous system in the region of the collarbones. Lymph, a colorless fluid whose composition is similar to that of blood except that it does not contain red blood cells or platelets, and contains considerably less protein, is continuously passing through the walls of the capillaries. It transports nutrients to the cells and collects waste products. Most of the lymph…
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Full text Article lymphatic system

From The Penguin Dictionary of Science
A network of vessels and ducts carrying ➤ lymph , forming a secondary circulatory system to the ➤ blood in vertebrates. The system consists of a network of fine lymph capillaries draining into larger ducts. It functions in the circulation and distribution of ➤ leucocytes around the body as well as…
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Full text Article The lymphatic system

From The Visual Guides: Understanding The Human Body Full text Article BLOOD CIRCULATION
Description Time Total Time The lymphatic system is a vast network of vessels running through the body. 00:02 - 00:06 00:01:08 It has a number of functions, including elimination of water that congests tissues. 00:08 – 00:13 Every day, blood circulation releases large amounts of liquid into the…
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Full text Article lymphatic system

From Philip's Encyclopedia
The lymphatic system is a network of lymphatic...
System of connecting vessels and organs in vertebrates that transport lymph through the body. Lymph flows into lymph capillaries and from here into lymph vessels (lymphatics). These extend throughout the body, leading to lymph glands , storing some of the leucocytes (white blood cells). Lymph nodes…
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Full text Article lymphatic (lymphoid) system

From Penguin Dictionary of Biology
System of LYMPH-containing vessels and the organs producing and accumulating lymphocytes linked by these vessels in vertebrates (see Fig. 104 ). The ‘second’ circulatory system in these animals. Comprises a blindly-ending meshwork of highly permeable endothelial lymph capillaries (resembling blood…
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Full text Article lymphatic system

From Britannica Concise Encyclopedia
System of lymph node s, vessels, and nodules and lymphoid tissue, including the thymus , spleen , tonsil s, and bone marrow , through which lymph circulates and is filtered. Its primary function is to return proteins, waste products, and fluids to the blood; molecules too big to enter the…
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Full text Article Lymphatic System

From The Gale Encyclopedia of Fitness
(Electronic Illustrators Group/Gale, a Cengage...
The lymphatic system is composed of a network of vessels that collects fluid and plasma proteins that leak out of capillaries and into the interstitial space. Lymphatic vessels return the lymph (fluid and plasma protein) back to the circulatory system through the veins. The lymphatic system is a…
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Full text Article Lymphatic System

From Gale Encyclopedia of Nursing and Allied Health
Components of the human lymphatic system that...
The lymphatic system is composed of a network of vessels that collects fluid and plasma proteins that leak out of capillaries and into the interstitial space. Lymphatic vessels return the lymph (fluid and plasma protein) back to the circulatory system through the veins. The lymphatic system is a…
| 2,265 words , 1 image
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Full text Article lymphatic system

From The Columbia Encyclopedia
(lĭmfăt'ĭk), network of vessels carrying lymph, or tissue-cleansing fluid, from the tissues into the veins of the circulatory system. The lymphatic system functions along with the circulatory system in absorbing nutrients from the small intestines. A large portion of digested fats are absorbed via…
| 368 words
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Full text Article lymphatic system

From Library of Health and Living: The Encyclopedia of Nutrition and Good Health
A system of vessels and organs that helps defend against infection consisting of lymphatic vessels (narrow tubes that transport a watery colorless fluid through tissues to the bloodstream). Unlike the circulatory system (the heart and blood vessels), the lymphatic system is not a “closed loop” …
| 173 words
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Location of the lymphatic vessels and...
The lymphatic system is part of the circulatory system of the body and is responsible for returning the excess tissue fluid that has leaked out of the capillaries to the circulating blood. The fluid within the system is called lymph and is similar to plasma but without the larger plasma proteins. …
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