Pulmonary Flashcards
Which of the following is not true with respect to conducting airways?
Secretory glands increase as airway divides.
The section of the airway that offers the least resistance to airflow is the:
Terminal respiratory unit.
Surfactant is necessary for gas exchange in the alveoli because it is required to:
Displace water.
Autonomic innervation is the primary determinant of smooth muscle activity in the airway. Irritant receptors in the proximal airway are an example of:
Vagal afferents.
The NANC fibers serve primarily to:
Provide reciprocity to cholinergic excitation.
The __________________ are very sensitive to alveolar partial pressure of oxygen (pO2).
Pulmonary arteries.
Elastic recoil is determined by:
Tissue elasticity and force needed to change alveolar air-liquid interface.
Pulmonary emboli and pulmonary vascular disease are common causes of:
Alveolar dead space.
Which of the following is most sensitive to high CO2 and drives respiration?
Central chemoreceptors.
Hyperacute protective mechanisms that characterize an asthma attack include all of the following except:
Vasoconstriction.
The primary inflammatory mediators that characterize an asthma attack include:
Eosinophils.
Which of the following obstructive pulmonary diseases is characterized by hypertrophy of the large airway mucus glands?
Chronic bronchitis.
Acute-acting mediators released during an asthma attack include all of the following except:
Procalcitonin.
The characteristics of chronic bronchitis include all of the following except:
Characterized by limited mucus production.
Which of the following is false in regards to the characteristics of emphysema?
Airway inflammation is a primary factor of disease.
