ch23 review .docx - an immune cell is observed to present...

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an immune cell is observed to present antigen to naive helper and cytotoxic T- lymphocytes... 1. cell is an antigen-presenting cell 2. cell may be a macrophage 3. cell may be a dendritic cell 4. cell may be a B-lymphocyte when a virus infects a cell, some of the viral proteins are broken down into peptide fragments TRUE After leaving the thymus, T-lymphocutes are naive, are immunocompetent, 1. the TCR binds a peptide displayed with an MHC class 1 molecule of an infected cell. 2. clones of the cytotoxic t-lymphocytes are produced All occur during activation of cytotoxic T-lymphocytes plasma cells are b-cells that produce antibodies true the circulating blood concentration of antibody against a specific antigen is referred to as the antibody_____ titer which of the following statements is true regarding memory in humoral immunity? 2. memory b-lymphocytes are found mainly in the lymph nodes which of the following statements is true about memory cells? 1. memory cells respond to antigens more rapidly than naive T cells 2. upon reexposure to a pathogen, memory cells engage in the T cell recall response, destroying the pathogen quickly a short lag time and high antibody titer during the ________ response is due to the presence of memory lymphocytes secondary components of the conducting zone of the respiratory system nose, nasal cavity, bronchioles, larynx, trachea Mucous Secretions mucin, lyzozyme, defensins, immnuoglobin A, bones of the skull that house paranasal sinuses frontal, ethmoid, maxilla, sphenoid, when antibodies completely cover the surface of a virus so it can no longer infect a cell, it is said to be neutralized antibody-mediated immunity is also called _____ HUMORAL immunity the concentration of antibodies against a specific antigen in the blood is known as the antibody ________ titer antibody titer: Autoimmune disorders: the type of disorder that occurs when the immune system fails to recognize the difference between self-antigens and non self-antigens a Y-shaped immunoglobulin molecule is made of 4 polypeptide chains and referred to as an ______________ antibody monomer if the wrong blood type is given to a pt, their red blood cells clump up because antibodies cross-link them in a process known as _____________. agglutination T-lymphocytes are a part of _________ immunity cellular viruses must enter a cell to reproduce. they are called obligate intracellular_________ parasites in a secondary response to a specific antigen, your antibody titer will _____ be higher. T-lymphocytes originate in ______ bone marrow red Virissae the hair in the nose that traps microbes
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acquired immunity is also called ______________ immunity adaptive cytokines are proteins function of pyrogens induce fever the complement system ______ the inflammatory response increases activated b-lymphocytes differentiate into ________ cells that produce antibodies plasma PLASMA CELLS antibodies that are produced by activated B cells the second time you are exposed to the identical antigen, you produce more antibodies more quickly because of the presence of memory B cells
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  • Spring '16
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