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chapter 22
Infections of the Respiratory system
14
Microbiology
Undergraduate 2
07/12/2010

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Term
Upper respiratory system
Definition
Lies within the head and neck. It includes the nasal cavity, nasopharynx, oropharynx, tonsils, sinuses, middle ear, and adenoids. THe epiglottis separates the upper and lower respiratory systems.
Term
Lower respiratory system
Definition
lies within th neck and chest. it includes th larynx(voice box), trachea(windpipe),Bronchi, bronchioles, and alvoli.
Term
Mucocliary escalator
Definition
mad of a layer of mucus and cilia that lines the respiratory tract and continually moves upward to trap microbes and foreign bodis. It extnds into th tertiary bronchi but does not enter th bronchioles or alveoli
Term
normal biota of th upper respiratory infection
Definition
staphylococcus pidermidis, s.aureus, biphthroids, lactobacillus, moraxella catarrhilis. the lower respiratory tract is sterile
Term
normal biota of th upper respiratory infection
Definition
staphylococcus pidermidis, s.aureus, biphthroids, lactobacillus, moraxella catarrhilis. the lower respiratory tract is sterile
Term
rhinitis(common cold)
Definition
nasal inflammation mucous mmbranes of th nose swell and mucus is released. it is th most common of all respiratory ssyndromes. The rhinovirus causes 25-50% of the colds. it is transmitted by the respiratory droplets, corona virus( as well as many other organisms) also causes th common cold. RHINORRHEA is the runny nose!
Term
adenoiditis
Definition
infection of the adenoids
Term
Pharyngitis or tonsilitis
Definition
infection of the throat. Symptoms- sore throat fever red throat covered by milky exudates, ulcers, blisters, or ven a grayish membran. commonly causy by STREPTOCOCCUS PYOGENES. which is a group A bta hemlytic streptococcus. Group A regers the angigen on th surfac of the bacteria and beta. hmolytic refers to its ability to lyse red blood cells to form a clear halp around colonies on blood agar. kit is transgrrd by respiratory droplets. Symptoms are typically severe sore throat, fevr, chills, headache, and a whitish exndates covering the tonsils. diagnosis is accoplishd by using a raid strep test.
Term
complications of strep
1 scarlet fever
Definition
characterized by red rash,fever, and a strawberry tongue. skin may shred!
Term
rheumatic fever
Definition
inflammation in th joints, skin and brain. it may also cause prmannt life threatening damage to heart valves.
Term
acut postreptococcal glomerulonephritis
Definition
caluses sudden kidney failure. symptoms are retained fluid decreasd and dark urine and a rise in blood pressure.
Term
sinusitis infection
Definition
of th sinuses symptoms-purulnt sinusitis causes fever and headache
Term
otis media infection of the middle ear
Definition
symptoms- ar pain temporary hearing loss and fever
Term
epiglotitis-infected epiglottis
Definition
symptoms my swell to many time its normal size and cut off air flow. caused by HAEMOPHILUS INFUENZAE( BLOOD LOVING DOES NOT CAUSE INFLUENZA) causes epiglottitis and produces a capsule which makes them resistant to HAMOPHILUS INFLUENZAE type b vaccine
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