Physiology Presentation 2 - donor and recipient tissues and...

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Click to edit Master subtitle style Physiology Presentation Brittanee Bernal August 15, 2010 HCA 220
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Blood Clotting v The clotting process is called hemostasis. v Blood clots to prevent blood loss v cells called platelets that circulate in the blood and serve to form a platelet plug over damaged vessels. v A second system based upon the actions of multiple proteins (called clotting factors) that act
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Bloo d clott ing cont Blood clotting is the process in which blood is
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Immune Response Ø The action taken by the body to defend itself from pathogens or abnormalities is called the immune response. Ø “With the aid of the immune system , the body monitors constant exposure to harmful elements in the external and internal environment and provides a means of defense”
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Imm une resp onse cont v The immune response is specific for a particular Immune responses are particularly important during the process of organ transplantation where the recipient may perceive donor antigens as "non-self." Careful matching of
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Unformatted text preview: donor and recipient tissues and the use of immunosuppressive agents that diminish the immune response minimize rejection . Allergic Reactions Allergic reactions occur when the body's immune system overreacts. In an allergic reaction, the immune system begins attacking substances that are normally harmless (such as dust, pollen, or a peanut protein) as if these substances were dangerous to the body. Aller gic Reac tions cont * Allergic reactions may develop due to exposure to Hormone Release v a chemical released by a cell in one part of the body, that sends out messages that affect cells in other parts of the organism. v Most hormones initiate a cellular response by initially combining with either a specific intracellular or cell membrane associated receptor protein. Click to edit Master subtitle style Hormone Release cont. v When the human growth hormone is released by the pituitary gland it is transported to your liver....
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Physiology Presentation 2 - donor and recipient tissues and...

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