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15 Cards in this Set
- Front
- Back
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What is a pathogen?
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it is when an microorganism, or virus or something has the capability of causing disease.
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Host
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organism that shelters or supports the growth of pathogens. usually a +/- relationship.
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Infectious disease:
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pathogen causes this disease, almost everything that is acquired from the environment is infectious.
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degenerative diseases
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diseases that occur from degeneration: heart disease some cancers, diabetes, autoimmune diseases
they are diseases not caused from pathogens. |
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What are bacteria or pathogens that grow in a host?
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They are parasites.
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Disease
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abnormal state in which the body or one of its parts is incapable of performing its functions properly. It's malfunction. It is said that an organism has a disease when a pathogen overcomes the body's defenses.
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If someone is infected by a pathogen do they develop a disease?
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not always as long as their normal state is not affected they can still be considered to not have a disease.
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What is pathology?
What three components makes up pathology? |
Pathology is the study of diseases, in an individual
: Etiology : Pathogenesis :effects/tx of disease |
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What is Etiology?
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the cause of the disease in question, Koch's postulate
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What is pathogenesis
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studying the development of a disease over time in an individual
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Why do humans need ecoli,what is the difference btw babies and adults with respect to ecoli?
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Ecoli have a normal relationship to a host, they are symbiotically aligned with.
They get food and protection, we get vit. K and protection from pathogens Babies get vit. K injections because they are usually sterile before birth and require 36-48 hours to become sterilized. |
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Resident flora/microflora
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Microbes that establish permanent residence either inside or on the body surface without causing disease
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Ratio of human body cells vs bacteria
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1:10, 30trill to 300 trillion, normal microbiota also contain bacteria, fungi, protozoa
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Examples of normal microbiota in the...
GI Oral Cavity Skin Vagina |
Escherichia coli
Streptococcus staphylococcus Lactobacillus, Candida(yeast) |
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Microbial antagonism.
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outcompete pathogens
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