Finals - Microbial Diseases of the Respiratory System-4th discussion - Sheet1 Flashcards
Components of the upper respiratory system:
Nose
Nasal cavity
Pharynx
Tonsils
Mucus
NA
Components of the lower respiratory system
Larynx
Trachea
Bronchi
Alveoli
Diaphragm
Various protective components
Ciliated mucous membrane, alveolar macrophages, and secretory antibodies
NA
Lower respiratory system
Typically microorganisms are not present
NA
Upper respiratory system
Colonized by many microorganisms
Normal microbiota limit growth of pathogens
Normal microbiota may be opportunistic pathogens
NA
Streptococcal Respiratory Diseases May progress to
scarlet or rheumatic fever
Presence of a pseudomembrane that can obstruct airways
Pathogen and virulence factors
Caused by Corynebacterium diphtheriae
Virulence factors
Diphtheria
Prevents polypeptide synthesis and causes cell death
diphtheria toxin
Diptheria is spread via
respiratory droplets or skin contact
is a serious bacterial infection that affects the mucous membranes of the throat and nose.
Diphtheria
The diphtheria bacillus was discovered and identified by German bacteriologists
Edwin Klebs and Friedrich Löffler.
causes pain and pressure of the affected sinus accompanied by malaise, it is also more common in adults
Sinusitis
results in severe pain in the ears, it is also more common in children
Otitis media
the most common cause of colds
Rhinoviruses,
Lower respiratory organs are usually axenic
NA
the state of a culture in which only a single species, variety, or strain of organism is present and entirely free of all other contaminating organisms.
Axenic
Lung inflammation accompanied by fluid–filled alveoli and bronchioles
Described by affected region or organism causing the disease
they are the most serious and the most frequent in adults
Bacterial pneumonias
the most common cause of bacterial pneumonia
Streptococcus pneumoniae
Primary Atypical (Mycoplasmal) Pneumonia is Caused by
Mycoplasma pneumoniae
Signs and symptoms
Pneumonia symptoms combined with a thick, bloody sputum
Klebsiella Pneumonia
Caused by Klebsiella pneumoniae is Caused by
Klebsiella pneumoniae
Disease similar to pneumococcal pneumonia
Haemophilus influenzae and Staphylococcus aureus
Causes pneumonia called pneumonic plague
Yersinia pestis
Causative agent of ornithosis
Disease of birds that can be transmitted to humans
Chlamydophila psittaci