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The Roman Empire The Roman Empire / Римская империя The Roman Empire had a huge task in front of them while it was first starting out and while it was becoming a dominant dynasty in the early civilizations. The main problem that the book "Discovering the Global Past" points out is how the Roman Empire found itself growing a little too quickly. The Roman Empire started out very small...

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U.S. Financial System U.S. Financial System / Финансовая система США Corporations have the need to raise capital for a number of reasons. Smaller firms need capital to start up operations. Larger firms need capital to expand operations and to finance inventory. There are various ways in which a firm can raise capital through the financial system and numerous individuals and entities...

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Microburst Microburst / Микропорыв There are many safety factors that pilots have to take into consideration while completing a safe flight. Everything has to be taken into mind when planning a flight. From weight and balance to preflight inspections. One safety factor that is impossible to have control over is weather. There are many aspects of weather that can affect an aircraft,...

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Romanian Orphanages Romanian Orphanages / Румынские сироты Imagine a hospital that, at one time ran smoothly helping the public, now with the primary objection of taking care of the thousands of abandoned infants and children. This is the reality in Romania when Nicolae Ceausescu was in power. In 1966 he created an Anti-Abortion/Contraception law in order to raise the population and...

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Introducing Christian Ethics Introducing Christian Ethics / Введение в христианскую этику The book that I have chosen to do my book review on is Introducing Christian Ethics, written by Henlee H. Barnette. This book deals with many Christian ethical decisions based on biblical foundations that are applied to various major problems. Some of the major problems pertain to the self,...

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The Lymphatic System

Топик на английском по теме: Science / Наука

The Lymphatic System / Лимфатическая система

The Lymphatic SystemThe lymphatic system is a complex network of vessels, ducts and capillaries, which run through out the body. There are many ?components’ in the lymphatic system, including; lymph fluid, lymphatic vessels, the lymphatic duct, lymph nodes, lacteals and the spleen. The lymphatic system and it’s importance were not recognised until the 1960′s.

The lymphatic system has 3 main importance’s and functions. The lymphatic system plays a large part in the immunity of the human body, It aids in resisting the spread of disease. The system does this by identifying, removing and destroying toxic substances. Another primary function of the lymphatic system is the transportation of digested fats away from the intestine to the bloodstream.

The lymphatic system transports a fluid known as lymph. Lymph consists of a diluted blood plasma and a large number of white blood cells. The majority of the white blood cells are lymphocytes. Lymphocytes are manufactured by bone marrow. Lymph may also contain a small amount of red blood cells.

Lymph is transported around the human body travelling from the blood stream through lymphatic vessels. Passing through ?glands’ known a lymph nodes. As lymph travels through the lymphatic vessels lymphocytes are released to attack foreign bodies and toxic substances found in the system. Lymph nodes also assist in the attack of foreign bodies. Lymph nodes are situated at regular intervals throughout the lymphatic system and are pocket-like in structure. The nodes contain a number of Leukocytes, also known as white blood cells. Nodes also produce phagocytes. Leukocytes and phagocytes destroy poisonous substances.

Once lymph has passed through the vessels it enter the lymphatic capillaries. These capillaries are similar to very thin veins and carry the lymph to the main lymph duct. Lymphatic capillaries collect digested fat in the intestine and carry it away from the tissue.

The main organ that is included in the lymphatic system, is the spleen. The spleen is related to the circulatory system. It plays a part in the human body’s immune system and works with and as part of the lymphatic system to destroy old red blood cells which may cause a danger to the body. It is only very recently that the various functions of the spleen have been discovered. The spleen has various other functions that are not connected to the function of the lymphatic system; these include, the production of opsonins, properdin, and tuftsin and the creation and storage of red blood cells

There several conditions that can affect the lymphatic system these include; inflammation of the lymphatic, tuberculosis of the lymph nodes, malignancies and elephantiasis.

We can therefore see that the lymphatic system plays a very important role in protecting the body from toxins, poisonous substances and illness.



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