AP Mod 23

Front

Circadian rhythm refers to

Back

a pattern of biological functioning that occurs on a roughly 24-hour cycle.

Front

Alpha waves are associated with

Back

relaxed but awake state.

Front

The rhythmic bursts of brain activity that occur during NREM-2 sleep are called

Back

sleep spindles.

Front

Which of the following is most accurate about a typical night's sleep? Options: The sleep cycle repeats itself every 60 minutes.,  During REM sleep the muscles are tense and brain waves reveal deep relaxation., As sleep progresses, NREM-3 sleep diminishes while REM sleep increases.,  Most of a night's sleep is spent in REM.

Back

As sleep progresses, NREM-3 sleep diminishes while REM sleep increases.

Front

The large, slow brain waves associated with deep sleep are called

Back

delta waves.

Front

The brain waves associated with REM sleep are most similar to those of

Back

NREM-1 sleep.

Front

Fast and jerky movements of the eyes are especially likely to be associated with

Back

REM sleep.

Front

REM sleep is called paradoxical sleep because

Back

our nervous system is highly active, while our voluntary muscles hardly move.

Front

The human sleep cycle repeats itself about every

Back

90 minutes.

Front

How is the hypothalamus involved in sleep?

Back

In response to decreasing light the hypothalamus' suprachiastmatic nucleus causes the pineal gland to increase production of melatonin, leading you to sleep.