Health And Disease

Front 1

antigens

Back 1

are molecules on the surface of cells that trigger an immune response

Front 2

antibodies

Back 2

proteins that are secreted in response to stimulation by the appropriate antigen. They have specific binding sites and are capable of acting against the antigen.

Front 3

primary response

Back 3

the immune system's response to a first infection - produce antibodies, takes a few days before no. of antibodies in blood rises to level that can fight infection

Front 4

secondary response

Back 4

the immune system's response to a second or subsequent infection by same pathogen

Front 5

active immunity

Back 5

immunity acquired by activation of immune system

Front 6

passive immunity

Back 6

when someone is given antibodies produced by someone else

Front 7

carcinogenic

Back 7

having the potential to cause cancer

Front 8

emphysema

Back 8

a disease that results in the loss of alveoli

Front 9

agglutination

Back 9

antibodies bind to antigens on surface of several pathogens. macrophages can recognise and easily destroy pathogen via phagocytosis

Front 10

neutralisation

Back 10

preventing pathogen from attaching to and entering host cells - the antibodies encourage macrophages carry out phagocytosis

Front 11

the most obvious primary defence

Back 11

skin - provides a barrier to the entry of microorganisms

Front 12

2 types of secondary defences

Back 12

non specific and specific