BIO NOTES 2 - Disease A. Infectious/Communicable diseases...

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Disease Used to describe a randge of conditions of impaired health A. Infectious/Communicable diseases A microbiological pathogen attacks our body and causes us misery (Flu, Mono, HIV) B. Disfunctional diseases Diseases in which some vital part of our body fails, either from accident, from old age, or because it was sub-optimal at birth. (muscular dystrophy, ‘blown’ Achilles tendon, heart attack, arthritis, stroke) C. Binomial system 2 names to classify species of animals Carolus Linnaeus Natural Theologian; invented binomial system Normal (micro)-flora PROTECT US from disease; naturally inhabit our large intestine (colon), mouth/nose/throat; E. coli in your colon= good…E.coli in your tummy= bad Cost Effectivity “Should a 90-year-old get an expensive hip replacement?”
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III. What kinds of entities are disease-producing pathogens? A. Virus Tiny particles of nucleic acid and protein; NOT ALIVE, but can hijack a living cell and force it to produce new virus particles Virions New virus particles B. Bacteria Prokaryotic microorganisms that can live in human tissue or within human cells and reproduce very quickly Toxins Poisonous substances released by bacterium into human cells/tissues that can damage/kill cells Blood Poisoning (Septicemia) Proliferative growth of bacteria in blood is a very serious condition, since blood supports rapid bacterial growth and since blood flows through and to all areas of your body C. Fungi 1 or 2 forms of eukaryotic microorganism that can colonize the human bodyu Unicellular fungi Yeast (infections in lungs and female reproductive tract can be serious) D. Protozoa 2 nd type of Eukaryotic microorganism that can colonize the human body (Malaria, Dysentery IV. Some additional medical terms A. Pathology Formal name for the study of disease; concerns itself with the causes, progress, and immediate/eventual effects of a disease Etiology Causes Pathogenesis Progress B. Infected When a viral or microbial pathogen invades or colonizes his/her person Local In a specific usually small area of the body Systemic Blood/lymph borne, more serious Acute Rapid onset, short duration, no long-term effects
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Chronic Lengthy onset, permanent duration C. 1. Endemic A disease that is always present in some members of a population, albeit usually at a low level
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BIO NOTES 2 - Disease A. Infectious/Communicable diseases...

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