Respiratory System — Flashcards

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

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

In the _____, HCO3- enters the red blood cells in exchange for Cl-

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

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)

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

At _____, the inward pull of the lung is balanced by the outward pull of the chest

_____ may be caused by hypoxemia (hypoxia or hypoxemia)

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

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