15 Blood Cells flashcards.docx

140 what does a b cell mature into once they have

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140) What does a B cell mature into once they have been presented to? Plasma Cell 141) What is a function of a Plasma Cell? Secrete Antibodies 142) What is the function of the antibody from a Plasma cell? Kill the attacking cell 143) How do the antibodies of a Plasma Cell kill an attacking cell? They attach to bacteria and pop the cell membrane 144) How do the antibodies of a Plasma Cell kill an attacking cell? They attach to encapsulated bacteria to help neutrophils and macrophages to phagocytize them 145) How do the antibodies of a Plasma Cell kill an attacking cell? They agglutinate (clump all over the bacteria, binding their receptor site so they 7
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Blood Cells Flashcards cannot cause harm) 146) Define the term Mononucleosis A disorder of B-cell lymphocytes 147) What is the cause of Mononucleosis? The Epstein Barr Virus 148) What is a characteristic of Mononucleosis? Inflammation of lymph vessels(lymphangitis) 149) What is Lymphangitis? Lymph vessel inflammation; usually from infection 150) What is a visual characteristic of Mononucleosis? Infected lymphocytes have a scalloped edge where they touch RBC’s 151) What is the function of a T-cell? Coordinate the immune response by recruiting other white blood cells. 152) How does a T-cell directly destroy bacteria? Popping their cell membrane 153) How does a T-cell directly destroy a foreign cell? Popping their cell membrane 154) Host body cells that have become infected with viruses may be killed by what type of cell? T-cell 155) What are characteristics of a T-cell regarding the killing of an invading cell? They do not need to phagocytize the invading cell, they just kill the cell and the macrophage dissolves the debris. 156) What is the relationship of a T-cell and antibodies? T-cells do not need the assistance of antibodies in order to destroy an invading cell. 157) Which type of patient is at risk due to the function of T-cells? Organ transplant patients 158) What type of cell attacks the organs of an organ transplant patient? T-cell 159) What types of drugs are designed to inhibit the action of T-cells? Immunosuppressive drugs 160) What cell is attacked by the HIV (AIDS) virus? T-cell 161) Where do T-cells originate from? Thymus Gland 162) What does the Thymus Gland secrete? Certain hormones which can cause T-cells to become immunocompetent 163) What happens when a T-cell becomes immunocompetent? Makes the cells mature and start to work 164) What are the three types of T-cells? Cytotoxic (killer), Helper, and Suppressor T- cells 165) What is the function of a Cytotoxic (killer) T- cell? Go out and directly kill bacteria or infected host cells 166) What are the functions of a Helper T-cell? Release chemicals called “cytokines” to call more white blood cells of all types to join the war. All WBCs can secrete cytokines. Present the macrophage’s antigen to a B- cell. 167) What happens when a T-cell presents a Produce antibodies against that particular 8
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Blood Cells Flashcards macrophage’s antigen to a B-cell?
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  • Fall '08
  • Harrison,C

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