#1
Which of the following is a primary function of the respiratory system?
Gas exchange
ExplanationRespiratory system primarily facilitates gas exchange.
#2
What is the primary function of the epiglottis in the respiratory system?
Preventing food from entering the trachea
ExplanationEpiglottis primarily prevents food from entering the trachea.
#3
In which part of the respiratory system does gas exchange primarily occur?
Alveoli
ExplanationGas exchange primarily occurs in the alveoli.
#4
What is the function of the diaphragm in the respiratory system?
Muscle for breathing
ExplanationDiaphragm is a muscle facilitating breathing in the respiratory system.
#5
Which part of the brain primarily controls the involuntary aspects of breathing, such as respiratory rate and depth?
Medulla oblongata
ExplanationMedulla oblongata controls involuntary aspects of breathing.
#6
What is the medical term for difficulty breathing?
Dyspnea
ExplanationDyspnea is the medical term for difficulty in breathing.
#7
Which of the following microbes is commonly associated with pneumonia?
Streptococcus pneumoniae
ExplanationStreptococcus pneumoniae is commonly linked with pneumonia.
#8
Which respiratory disorder is characterized by the narrowing of the airways and difficulty exhaling?
COPD (Chronic Obstructive Pulmonary Disease)
ExplanationCOPD involves narrowed airways and difficulty in exhaling.
#9
Which of the following is a common symptom of tuberculosis?
Persistent cough
ExplanationPersistent cough is a common symptom of tuberculosis.
#10
What is the main function of surfactant in the lungs?
Reducing surface tension in the alveoli
ExplanationSurfactant reduces surface tension in the alveoli.
#11
What is the main function of alveoli in the respiratory system?
Gas exchange
ExplanationAlveoli primarily facilitate gas exchange in the respiratory system.
#12
Which respiratory condition is characterized by the inflammation of the bronchial tubes?
Bronchitis
ExplanationBronchitis is characterized by inflammation of the bronchial tubes.
#13
What role do the cilia play in the respiratory system?
Filtering air and trapping particles
ExplanationCilia filter air and trap particles in the respiratory system.
#14
Which of the following is not a component of the upper respiratory tract?
Bronchi
ExplanationBronchi are not part of the upper respiratory tract.
#15
What is the term for the process of breathing out air from the lungs?
Exhalation
ExplanationExhalation is the process of breathing out air from the lungs.