A right-shift of the O2-Hemoglobin curve is:

An adult initially has normal alveolar ventilation (V.A) and perfusion (Q˙). A pulmonary embolism now completely obstructs the right main pulmonary artery. However, overall alveolar ventilation and perfusion remain unchanged. Arterial PO2 will:

Muscles contributing to forced expiration include:

Compared to normal adult hemoglobin (HbA), fetal hemoglobin (HbF):

When a trapeze artist hangs by the knees, the ventilation/perfusion (V.A/Q.) ratio is:

When a trapeze artist hangs by the knees, his alveolar ventilation (V.A) is:

The parameter that provides the maximal stimulus to the central chemoreceptor ACUTELY is:

The accompanying Figure 5 is an O2-CO2 diagram for a normal individual. Which point most closely corresponds to the composition of inspired air?    

The neurons that innervate the primary muscles of inspiration are controlled by the _____ and have their cell bodies located in the _____.

Surfactant is made by ____________, and the greater the surface density of surfactant molecules at the air-water interface, the __________ the surface tension.