The basic rest activity cycle (BRAC) is a __________ minute cycle in alternating levels of alertness controlled by the __________; during sleep it controls cycles of __________.
A) 90; pons; REM sleep and slow-wave sleep
B) 75; medulla; REM sleep and slow-wave sleep
C) 60; medulla; REM sleep
D) 45; raphe nucleus; slow-wave sleep
E) 30; brain stem; REM and slow-wave sleep

Question

Quizplus · Accepted Answer

The basic rest activity cycle (BRAC) is a 90-minute cycle that involves alternating levels of alertness controlled by the pons. During sleep, this cycle controls the alternation between REM sleep and slow-wave sleep.

The Basic Rest Activity Cycle (BRAC) Is a __________ Minute