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23 Cards in this Set
- Front
- Back
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define disease |
a particular abnormal condition of a structure or function that affects part or all of an organism |
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define Infectious Disease |
-disease caused by pathogenic microorganisms -spread directly or indirectly, from one person to anothe |
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4 types of disease? |
genetic infectious deficiency physiological |
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define Pathogen |
a disease causing organism |
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4 types of pathogens |
bacterium virus fungi parasite |
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a disease caused by a Fungi, it's symptoms and treatments |
Ringworm Symptoms- hair loss, itchy scalp & red rashes Treatment- antifungal medication/cream |
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a disease caused by a Virus, it's symptoms & treatment |
Measles Symptoms- red, blotchy skin rash & runny nose Treatment- o.t.c fever reducers or vitamin A could help with symptoms |
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a disease caused by a Parasite, it's symptoms & treatments |
Malaria Symptoms- headache, vomiting, diarrhea Treatment- Antimalarial drugs |
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a disease caused by a Bacteri, it's symptoms & treatments |
Salmonella Symptoms- diarrhoea, fever, chills & abdominal pain Treatment- fluids, rest & antibiotics |
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define Direct Contact + 3 examples |
spread when pathogens pass from the infected person to the healthy person via direct physical contact •touching •sexual contact •contact with blood |
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define Indirect Contact + 3 examples |
when there is no direct human-to-human contact •contaminated surfaces or objects •vectors, bite from mosquitos/fleas •Air-borne - breathing in droplets |
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1st Line of Defence |
non-specific physical/mechanical and chemical barriers |
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2nd Line of Defence |
Non-specific immune response. inflammation and use of phagocytic cells |
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3rd Line of Defence |
Specific immune response |
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define Non-Specific |
protect against all pathogens the same way, and are not developed over time |
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Mechanical Barrier Examples |
Urine flushes out urethra Cilia line the nose Tears Mucous Membranes |
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Chemical Barrier Examples |
Sweat, is acidic to help kill pathogens Tears can chemically destroy patho Cerumen (earwax) is acidic |
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define Communicable & Non-Communicable |
•disease can be transferred from one person to another •disease can't be transferred or catch it |
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define Specific immune response |
effects individual pathogens differently and is developed over time (adaptive) |
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Treatment for Bacterial and Viral infection? |
anti-biotics |
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Treatment for Parasite infection |
medicine,eg: anti-malarials |
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treatments for fungal infection |
antifungal creams |
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Steps in Inflammatory Response |
Pathogen breaks first line Body signals mast cells Mast cells release Histamine Increases blood flow to area Increased blood flow increase temperature Increased blood flow brings more phagocytes to the area to eat pathogen |
