| A | B |
|---|
| T cells | attacks infected cells and kills them |
| B cells | produce antibodies to fight cells |
| antigen | protein 'tag' found on pathogens |
| antibody | chemicals that 'fit' on antigens, disables the pathogen |
| 1st line of defense | barriers like skin that keep pathogens out |
| 2nd line | inflammation and cells that engulf pathogens |
| 3rd line | pathogen specific attack like antibodies and T cells |
| allergies | an immune overreaction, causes swelling, fever inflammation |
| autoimmune | diseases in which the immune system attacks your own body |
| degenerative | diseases in which the body is wearing out |
| infectious | diseases caused by pathogens |
| congenital | diseases humans are born with or are caused by genes |
| cancer | diseases caused by uncontrolled cell growth |
| active immunity | the creation of B cells that allow you to make antibodies at any time |
| passive immunity | temporary protection by receiving antibodies not B cells |
