Genetic Mutations Unit 2-2 Notes Mr. Hefti – Pulaski Biology.
Unit 5-5 Notes Mr. Hefti – Pulaski Biology. Type of cellFunctionLocation MacrophageIngests...
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Transcript of Unit 5-5 Notes Mr. Hefti – Pulaski Biology. Type of cellFunctionLocation MacrophageIngests...
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IMMUNE SYSTEM CELLS
Unit 5-5 NotesMr. Hefti – Pulaski Biology
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Blood Review
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Type of cell Function Location
Macrophage Ingests pathogens Spleen, lungs, blood
Neutrophil Engulfs / destroys pathogens Bloodstream
Natural killer cell
Punctures infected cells Infected cells
Helper T cell Activates B cells and Cytotoxic T cells
Bloodstream
Cytotoxic T cell
Punctures infected cells Infection sites
B cell Forms plasma cells Infection sites
Plasma cell Releases antibodies Bloodstream
Memory cell Protects against defeated pathogens
Bloodstream
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Immune response steps…1. Antigen triggers IR2. Macrophage “swallows”
pathogen3. Helper T and B cells
activated4. Antibodies bind to antigen
marking cell for destruction5. Cytotoxic T destroys marked
cells
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Refer to
Tiger p. 936 to
label!
Virus
Viral antigen
Macrophage
Viral antigen
Helper T cellReceptor
proteins
Cytotoxic T cell
B cell
Plasma cell
Infected body cells
Antibodies
Viruses
Viral antigen
Receptor proteinAntibody
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How do vaccines work? Immune system exposed to
weakened or harmless version of pathogen
Antibody production stimulated prior to actual exposure
BBC video clip
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Type of cell Function Location
Macrophage Spleen, lungs, blood
Neutrophil Engulfs / destroys pathogens
Punctures infected cells Infected cells
Helper T cell Activates B cells and Cytotoxic T cells
Bloodstream
Punctures infected cells Infection sites
B cell Forms plasma cells
Plasma cell
Protects against defeated pathogens
Bloodstream
Type of cell Function Location
Macrophage Spleen, lungs, blood
Neutrophil Engulfs / destroys pathogens
Punctures infected cells Infected cells
Helper T cell Activates B cells and Cytotoxic T cells
Bloodstream
Punctures infected cells Infection sites
B cell Forms plasma cells
Plasma cell
Protects against defeated pathogens
Bloodstream
Type of cell Function Location
Macrophage Spleen, lungs, blood
Neutrophil Engulfs / destroys pathogens
Punctures infected cells Infected cells
Helper T cell Activates B cells and Cytotoxic T cells
Bloodstream
Punctures infected cells Infection sites
B cell Forms plasma cells
Plasma cell
Protects against defeated pathogens
Bloodstream
Type of cell Function Location
Macrophage Spleen, lungs, blood
Neutrophil Engulfs / destroys pathogens
Punctures infected cells Infected cells
Helper T cell Activates B cells and Cytotoxic T cells
Bloodstream
Punctures infected cells Infection sites
B cell Forms plasma cells
Plasma cell
Protects against defeated pathogens
Bloodstream