29 Questions
What is the function of the mucociliary escalator in the respiratory system?
To lift materials in the bronchi to the pharynx for expulsion or swallowing
Which part of the respiratory system contains a variety of normal microflora that help prevent infection by pathogens?
Upper respiratory tract
What is the main function of mucus in the respiratory system?
To trap microorganisms and most particles of debris
What is the primary function of coughing and sneezing in the respiratory system?
To mechanically agitate mucus, increasing exposure of microorganisms
Which part of the respiratory system is lined with moist epithelium containing mucus-secreting cells and covered with cilia?
Nasal cavity
What role do macrophages play in the respiratory system?
Engulf particles and microbes in the alveoli
What is the most common cause of pharyngitis?
Viral infection
Which bacterium is mainly responsible for streptococcal pharyngitis?
Streptococcus pyogenes
How is pharyngitis primarily transmitted?
Inhaling droplets from active cases or healthy carriers
What distinguishes strep throat from the common cold?
Absence of cough and nasal discharge
Which bacterium is almost invariably responsible for acute epiglottitis?
Haemophilus influenzae
What causes the difficulty in breathing or even death in acute epiglottitis?
Inflammation of the epiglottis
What is the main treatment for severe sinusitis symptoms?
Intranasal corticosteroids and nasal decongestants
Which infection affects the nose, throat, and sinuses?
Sinusitis
What is the primary function of macrophages in the respiratory system?
Engulfing particles and microbes in the alveoli
Which part of the respiratory system is responsible for mechanically agitating mucus to increase exposure of microorganisms?
Bronchi
What is the main function of the mucociliary escalator in the respiratory system?
Lifting materials to the pharynx to be expelled or swallowed
What distinguishes the upper respiratory tract normal flora from pathogens inhaled into the system?
Variety of normal microflora helping to prevent infection by pathogens
What is the main role of hairs and mucus in the nasal cavity with respect to microorganisms and particles?
Trapping microorganisms and most particles of debris
Which part of the respiratory system contains moist epithelium with mucus-secreting cells and cilia?
Pharynx
Which bacterium is responsible for causing more than half of the cases of acute sinusitis?
Streptococcus pneumoniae
What causes the inflammation of tissues that rapidly closes the airway, leading to difficulty in breathing or even death in acute epiglottitis?
Haemophilus influenzae
What distinguishes strep throat from the common cold?
Absence of cough and nasal discharge
Which bacterium is mainly responsible for streptococcal pharyngitis?
Streptococcus pyogenes
What is the drug of choice for severe symptoms of sinusitis?
Amoxicillin
What causes pharyngitis, or sore throat, in the majority of cases?
Virus
Which type of sinus infection lasts over 3 months?
Chronic sinusitis
What is the primary cause of laryngitis?
Combination of bacteria and virus
Which microorganism causes more than half of the cases of acute sinusitis?
Haemophilus influenzae
Test your knowledge of diseases of the respiratory system with this quiz. The quiz covers topics such as the upper and lower respiratory tract, anatomy, and pharmaceutical microbiology related to respiratory diseases.
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