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The Immune System

Learn about our immune system through this fascinating presentation!
by

Rohan Desai

on 20 April 2010

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Transcript of The Immune System

First Line
The Immune System Uses: Skin, sweat, oil glands, saliva, tears, mucous membranes
stomache acids and enzymes. Second Line Uses: Macrophage, Neutrophil, Natural Killer Cells, Mast Cell and Interferon Third Line
Uses:Helper T Cell, Cytotoxic T Cell, B Cell, Plasma Cell, Memory Cell and Macrophage 1. Damaged tissue cells release alarms 2. Mast cells releases Histamine and makes capillaries widen,
and excess blood rushes into the damaged area. 3. Macrophage and Neutrophil attack the invading
bacteria. Inflamitory Response
SKIN

Blocks bacteria MUCOUS MEMBRANE
Blocks bacteria in the respitory passage
SWEAT + OIL GLANDS
Destroys bacteria STOMACH ACID
Rids stomach of bacteria ENZYMES + TEARS
Get rid of bacteria NATURAL KILLER CELL
Releases poke holes which destroy virus and cancer cells
MAST CELL
Starts inflammatory respones and causes blood vessels to inflate INTERFERON
Protect other cells from infection
Effective against many viruses NEUTROPHIL
Englufs bacteria
Releases chemicals that kills neutrophils and pathogens MACROPHAGE
Part of specific and non-specific defence
Located in interstitial fluid
Egulfs pathogens 1. Macrophage engulfs the virus and shows protein spikes, which then attracts the Helper T Cell 2. The Helper T Cell bonds to the Macrophage and sends chemicals that act as "alarms" 3A. Cytotoxic T cells attach to the body cell. The Cytotoxic cell then sends out perforin molecules which bursts the infected cell. 3B. The B cell's antibodies can recognize more than 100 million antigens. After attaching to a virus cell, the B cell can transform into a plasma cell which helps fight viruses. The B cell may also transform into a memory cell, which lasts longer and fights viruses faster. First Line Functions Second Line Functions Third Line Function
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