and NK cells; in studies this INF has shown to be responsible for causing a number of the symptoms for infectious mononucleosis. Simultaneously functioning at this time is an immunosuppressive cytokine IL-10 (interleukin 10). IL-10 is produced by lymphocytes and monocytes – it serves to help suppress the production of cytokines and inhibit the spread of T-cells. This in turn inhibits the ability of the T-cells to make more INF-y. The dance of this interferon and cytokine is a crucial immunological factor
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Going to the public pool to take a refreshing swim might seem like a good idea and a great way to cool your body off when the temperatures are at their highest levels‚ but the truth is that the amount of damage that you are doing to your health by swimming in public pools is jaw-dropping to say the least. If you aren’t aware of the dangers that public pools present to your health‚ read the following lines to find out exactly what these health risks are‚ and you definitely won’t ever think about entering
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Compare the Circulatory system and the Lymphatic system Closely connected with the blood and circulatory system‚ the lymphatic system is an extensive drainage system that returns water and proteins from various tissues back to the blood stream. When blood reaches the arterial end of the capillary beds in the body tissues‚ fluid from the plasma is forced out of the capillaries by the blood pressure in to a space between the capillaries and the tissue cells. This fluid‚ called tissue fluid‚ is plasma
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Why Zebras Don’t Get Ulcers August 6‚ 2009 Abstract Why Zebras Don’t Get Ulcers by Robert M. Sapolsky‚ gives a description of the inner workings of the human‚ and animal‚ stress response. He talks about what physiologically happens to people when they remain in a state of stress of a long period of time. The immune response‚ depression‚ aging and death‚ and sexual reproduction are just some of the topics Sapolsky discusses and how stress affects each of these. Why Zebras Don’t Get Ulcers
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antibodies. It is also important for the distribution of fluids and nutrients in the body‚ because it drains excess fluids and protein so that tissues do not swell up. "Lymph" is a milky body fluid that contains a type of white blood cells‚ called "lymphocytes‚" along with proteins and fats. Lymph seeps outside the blood vessels in spaces of body tissues and is stored in the "lymphatic" system to flow back into the bloodstream. Through the flow of blood in and out of arteries‚ and into the veins‚ and
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Erythrocytes The images above shows the structure of haem (iron is shown in red). Images from Haemoglobin‚ BioNet The images above shows the structure of haem (iron is shown in red). Images from Haemoglobin‚ BioNet Erythrocytes‚ also known as ‘Red Blood Cells’‚ is one of the cells in our body that makes our blood. Erythrocytes are supported by many of other components in making blood. They are a disk shaped a cell which are filled with an iron contain pigment called haemoglobin . Haemoglobin
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White Blood Cells (Leucocytes) Lymphocytes – some secrete antibodies‚ some kill infected cells and control aspects of immunological process. Monocytes – engulf bacteria. Granulocyte – 3 types; neutrophil‚ eosinophil‚ basophil‚ Some engulf bacteria‚ others involved in allergies and inflammation
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past year and a half I have worked continuously at a laboratory‚ first at University of Massachusetts Medical School and then at Cornell. At UMass‚ I became interested in molecular biology because of the work I was doing with the maturation of B-lymphocytes. Because of the educational atmosphere of UMass‚ I became very involved with the graduate students and was on the cutting edge of research. Everyday I spent at that lab I was contributing to a major breakthrough in the understanding of B-cells.
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as infectious mononucleosis) and other nasty diseases. How does the virus work? The Epstein-Barr virus appears capable of infecting only two major cell types: the outer (epithelial) cells of the salivary gland‚ and white blood cells known as B lymphocytes (B-cells). Infection with the Epstein-Barr virus develops first in the salivary gland. Large amounts of the virus are released in the saliva‚ enabling it to spread from one person to another. How mono is spread Epstein-Barr virus (EBV) can be
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Unit 5 P2 Explain what they are‚ their functions and where they are found. Then go into detail about two organs‚ with their functions‚ what tissues they are made of and where they are found in the body. Tissues: Tissues are groups of similar cells that have specific functions. In this piece of work I’ll talk about these types of cells: Epithelial Tissues: Epithelial are the lining of internal and external surfaces and body cavities‚ including tubes/channels (ducts) carrying secretions from glands
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