Respiratory System — Flashcards

The two sources of the physiologic shunt are _____ blood flow and a small portion of coronary venous blood (drains into the left ventricle via the thebesian vein)

Breathing as an involuntary process is controlled by the _____ and pons of the brain stem

_____ in Pco2 cause the O2-hemoglobin dissociation curve to shift to the right

In zone _____ of the lung, alveolar ventilation (V) is lowest

_____ O2 binding to hemoglobin causes decreased affinity for CO2 (Haldane effect)

The V/Q ratio at the apex of the lung is normally _____, indicating wasted ventilation

In zone _____ of the lung, blood flow (Q) is highest

_____ may be caused by hypoxemia (hypoxia or hypoxemia)

Elastic recoil is _____ proportional to compliance and directly proportional to elastance

_____ in temperature cause the O2-hemoglobin dissociation curve to shift to the right