Forty-Year-Old Lance Insists That He Never Dreams

question 142

Multiple Choice

Forty-year-old Lance insists that he never dreams.Research suggests that he probably

• A) would report a vivid dream if he were awakened during REM (R)sleep.
• B) dreams during N1 rather than during REM (R)sleep.
• C) experiences more N2 sleep than most people.
• D) cycles through the distinct sleep stages much more rapidly than most people.

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Definitions:

Blood Pressure

The pressure exerted by circulating blood upon the walls of blood vessels, often measured to assess heart and vascular health.

Tricuspid Valve

A valve in the human heart that lies between the right atrium and the right ventricle, preventing backflow of blood.

Diastole

The stage of the cardiac cycle during which the heart muscle unwinds and the chambers are permitted to be replenished with blood.

Systole

The phase of the heartbeat during which the heart contracts and pumps blood from the chambers into the arteries.