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Clues
Clues

... tubes extending into the interstitial spaces. 32. Spaces in the lymph nodes providing a complex network of chambers and channels through which lymph circulates as it passes through the node. 34. The answer is humans 36. The right ___ duct drains lymph from the upper right side of the body. 37. Abbr. ...
Unit 2.2.2 – Health and Disease Immunity
Unit 2.2.2 – Health and Disease Immunity

... motion mechanisms to destroy them: thus protecting the body from harm. This is known as the immune response. The function of B-lymphocytes B-lymphocytes are involved in the production of antibodies in response to antigens, which is called humoral immunity. On the surface of the membrane of B-lymphoc ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 2. Expand GTP, MALT, IDDM and FADD. 3. Define antigen presenting cells. 4. Describe a method to identify human T cells. 5. Explain autoimmunity. 6. What are anti idiotypic antibodies ? 7. Write the characteristics of innate immunity. 8. Differentiate interferon from opsonin. 9. Explain reticular dys ...
Checkpoints in the development of thymic cortical epithelial cells
Checkpoints in the development of thymic cortical epithelial cells

... EJ Jenkinson, WE. Jenkinson and G. Anderson MRC Centre for Immune Regulation, Institute for Biomedical Research, University of Birmingham Introduction and Overview The thymus is the unique site of production of T-cells, an essential arm of the adaptive immune system which is targeted by vaccinations ...
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... water? How do they lose it? What adaptations do they have to minimize water loss and dehydration? What are nitrogenous wastes? What are the 3 types of nitrogenous wastes made by animals? Which ones do humans make? What are the advantages and disadvantages of each waste product? fig 25.6. What is Go ...
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Amphibian Immunology.pptx
Amphibian Immunology.pptx

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... Consists of cells that protect the body against invaders like bacteria and viruses Leukocytes White Blood Cells Patrol blood and other body fluids for invaders Identifies antigens on intruders and signal attack from immune system Macrophage Surrounds intruder, digests it, and exposes its antigens on ...
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... are attached to needs to be destroyed.  T cells – (white blood cells) attack and destroy infected cells that have antigens on their surface. DRUGS: 1. Antibiotics (e.g. Penicillin – a type of FUNGI!) – drugs used to TREAT a bacterial infection; they work by killing bacteria, stopping bacteria from ...
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... returns it to the blood. The fluid is called the lymph, and the vessels are called lymphatic vessels. The lymphatic vessels collect the lymph into a central vessel called the thoracic duct which releases the lymph into the blood stream via the left subclavian vein. ...
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... Institute (MPI) of Biochemistry in Martinsried near Munich, Germany, have now comprehensively detected the messenger proteins secreted by immune cells during such an immune response. “Our method enables an analysis of the information exchange between cells and provides a powerful tool to understand ...
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Recombinant Human GM-CSF

... Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) was initially characterized as a growth factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is produced by a number of different cell types (including activated T cells, B cells, macrophages, mast c ...
Immunology-Uveitis
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... Retention of T cells with specificity to ocular antigens due to Weak negative selection in individuals with particular HLA types Previous infection or trauma primed for ocular antigens in an ...
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Phagocyte



Phagocytes are cells that protect the body by ingesting (phagocytosing) harmful foreign particles, bacteria, and dead or dying cells. Their name comes from the Greek phagein, ""to eat"" or ""devour"", and ""-cyte"", the suffix in biology denoting ""cell"", from the Greek kutos, ""hollow vessel"". They are essential for fighting infections and for subsequent immunity. Phagocytes are important throughout the animal kingdom and are highly developed within vertebrates. One litre of human blood contains about six billion phagocytes. They were first discovered in 1882 by Ilya Ilyich Mechnikov while he was studying starfish larvae. Mechnikov was awarded the 1908 Nobel Prize in Physiology or Medicine for his discovery. Phagocytes occur in many species; some amoebae behave like macrophage phagocytes, which suggests that phagocytes appeared early in the evolution of life.Phagocytes of humans and other animals are called ""professional"" or ""non-professional"" depending on how effective they are at phagocytosis. The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells). The main difference between professional and non-professional phagocytes is that the professional phagocytes have molecules called receptors on their surfaces that can detect harmful objects, such as bacteria, that are not normally found in the body. Phagocytes are crucial in fighting infections, as well as in maintaining healthy tissues by removing dead and dying cells that have reached the end of their lifespan.During an infection, chemical signals attract phagocytes to places where the pathogen has invaded the body. These chemicals may come from bacteria or from other phagocytes already present. The phagocytes move by a method called chemotaxis. When phagocytes come into contact with bacteria, the receptors on the phagocyte's surface will bind to them. This binding will lead to the engulfing of the bacteria by the phagocyte. Some phagocytes kill the ingested pathogen with oxidants and nitric oxide. After phagocytosis, macrophages and dendritic cells can also participate in antigen presentation, a process in which a phagocyte moves parts of the ingested material back to its surface. This material is then displayed to other cells of the immune system. Some phagocytes then travel to the body's lymph nodes and display the material to white blood cells called lymphocytes. This process is important in building immunity, and many pathogens have evolved methods to evade attacks by phagocytes.
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