Causes of Disease

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  • Created by: Malika22
  • Created on: 30-03-13 11:34
What is disease?
Malfunction of body or mind which has an adverse effect on good health.
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Microorganism
Single-called organism that is too small top be seen under a microscope. They include bacteria and viruses. Some microorganisms cause disease and these are called pathogens.
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What must a microorganism consider to be a pathogen?
Gain entry; Colonise the tissue oof the host; Resist the defencesof the host; Cause damage to the host tissue
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When a pathogen is transferred from one individual to another it is called?
Transmission
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How do microorganisms get into the body?
Penetration; One interface is then skin which has a thick, continuous layer (effective barrier) Invasion normally happens on broken skin.
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Interfaces have common points of entry and include...
gas exchange system: Pathogens that cause influenza, turberculosis and bronchitis infect in this way. Digestive system
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Card 2

Front

Microorganism

Back

Single-called organism that is too small top be seen under a microscope. They include bacteria and viruses. Some microorganisms cause disease and these are called pathogens.

Card 3

Front

What must a microorganism consider to be a pathogen?

Back

Preview of the front of card 3

Card 4

Front

When a pathogen is transferred from one individual to another it is called?

Back

Preview of the front of card 4

Card 5

Front

How do microorganisms get into the body?

Back

Preview of the front of card 5
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