In the carbonate buffer system, ___________ reacts with any excess hydroxide ions.

A decrease in the blood pressure may indicate:

A. a loss of vascular tone. B. forceful cardiac contraction. C. increased blood volume. D. arterial constriction.

When evaluating an oblique L-spine radiograph, when the rotation is too steep, the pedicles move ______________ to the midline of the vertebral bodies.

A. anterior B. posterior