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HCB TEST 4 QUESTIONS AND ANSWERS 100%
PASS
what is the purpose of the respiratory system? - ANSWER ✔✔-ventilate and oxygenate the remaining
body systems and tissues
airway - ANSWER ✔✔-passageway by which air enters and leaves the body. includes the nose, mouth,
pharynx, larynx, trachea, bronchi and lungs
alveolar ventilation - ANSWER ✔✔-the amount of air that reaches the alveoli
artificial ventilation - ANSWER ✔✔-forcing air or oxygen into the lungs when a patient has stopped
breathing or has inadequate breathing (positive pressure ventilation)
apnea - ANSWER ✔✔-no breathing
bronchoconstriction - ANSWER ✔✔-contraction of smooth muscle that lines the bronchial passages that
results in a decreased internal diameter of the airway and increased resistance to airflow
cellular respiration - ANSWER ✔✔-exchange of oxygen and carbon dioxide between cells and circulating
blood
cyanosis - ANSWER ✔✔-blush color of the skin due to insufficient oxygen levels in the blood
diffusion - ANSWER ✔✔-process by which molecules move from an area of high concentration to an area
of low concentration
dyspnea - ANSWER ✔✔-difficult or labored breathing; shortness of breath
Created By Grace Amelia 2025: All Rights Reserved.
, 2|Page
flail chest - ANSWER ✔✔-fracture of two or more adjacent ribs in two or more places that allows for free
movement of the fractured segment
flowmeter - ANSWER ✔✔-valve that indicated the flow of oxygen reaching the tissues of the body
hypoxia - ANSWER ✔✔-deficiency of oxygen reaching the tissues of the body
intercostal - ANSWER ✔✔-situated or extending between the ribs
nasopharyngeal airway - ANSWER ✔✔-flexible breathing tube inserted through the patient's nostril into
the pharynx to help maintain an open airway
oropharyngeal airway - ANSWER ✔✔-curved device inserted through the patient's mouth into the
pharynx to help maintain an open airway
paradoxical motion - ANSWER ✔✔-movement of ribs in flail segment that is opposite to the direction of
movement of the rest of the chest cavity
patent airway - ANSWER ✔✔-airway that is open and clear and will remain open and clear without
interference to the passage of air into and out of the body
pressure regulator - ANSWER ✔✔-device connected to an oxygen cylinder to reduce pressure, so it is safe
for delivery of oxygen to a patient
pulmonary respiration - ANSWER ✔✔-exchange of oxygen and carbon dioxide between the alveoli and
circulating blood in the pulmonary capillaries
respiratory arrest - ANSWER ✔✔-when breathing stops completely
respiratory distress - ANSWER ✔✔-increased work of breathing; a sensation of shortness of breath
(doesn't need ventilation)
Created By Grace Amelia 2025: All Rights Reserved.
HCB TEST 4 QUESTIONS AND ANSWERS 100%
PASS
what is the purpose of the respiratory system? - ANSWER ✔✔-ventilate and oxygenate the remaining
body systems and tissues
airway - ANSWER ✔✔-passageway by which air enters and leaves the body. includes the nose, mouth,
pharynx, larynx, trachea, bronchi and lungs
alveolar ventilation - ANSWER ✔✔-the amount of air that reaches the alveoli
artificial ventilation - ANSWER ✔✔-forcing air or oxygen into the lungs when a patient has stopped
breathing or has inadequate breathing (positive pressure ventilation)
apnea - ANSWER ✔✔-no breathing
bronchoconstriction - ANSWER ✔✔-contraction of smooth muscle that lines the bronchial passages that
results in a decreased internal diameter of the airway and increased resistance to airflow
cellular respiration - ANSWER ✔✔-exchange of oxygen and carbon dioxide between cells and circulating
blood
cyanosis - ANSWER ✔✔-blush color of the skin due to insufficient oxygen levels in the blood
diffusion - ANSWER ✔✔-process by which molecules move from an area of high concentration to an area
of low concentration
dyspnea - ANSWER ✔✔-difficult or labored breathing; shortness of breath
Created By Grace Amelia 2025: All Rights Reserved.
, 2|Page
flail chest - ANSWER ✔✔-fracture of two or more adjacent ribs in two or more places that allows for free
movement of the fractured segment
flowmeter - ANSWER ✔✔-valve that indicated the flow of oxygen reaching the tissues of the body
hypoxia - ANSWER ✔✔-deficiency of oxygen reaching the tissues of the body
intercostal - ANSWER ✔✔-situated or extending between the ribs
nasopharyngeal airway - ANSWER ✔✔-flexible breathing tube inserted through the patient's nostril into
the pharynx to help maintain an open airway
oropharyngeal airway - ANSWER ✔✔-curved device inserted through the patient's mouth into the
pharynx to help maintain an open airway
paradoxical motion - ANSWER ✔✔-movement of ribs in flail segment that is opposite to the direction of
movement of the rest of the chest cavity
patent airway - ANSWER ✔✔-airway that is open and clear and will remain open and clear without
interference to the passage of air into and out of the body
pressure regulator - ANSWER ✔✔-device connected to an oxygen cylinder to reduce pressure, so it is safe
for delivery of oxygen to a patient
pulmonary respiration - ANSWER ✔✔-exchange of oxygen and carbon dioxide between the alveoli and
circulating blood in the pulmonary capillaries
respiratory arrest - ANSWER ✔✔-when breathing stops completely
respiratory distress - ANSWER ✔✔-increased work of breathing; a sensation of shortness of breath
(doesn't need ventilation)
Created By Grace Amelia 2025: All Rights Reserved.
