The physiological processes of sleep are complex.Which of the following statements is the most appropriate one regarding this process?

A) Circadian rhythms occur in a cycle longer than 24 hours.
B) Non-rapid eye movement (NREM) refers to the cycle that most people experience when in a high-stimulus environment.
C) The reticular activating system is partly responsible for the level of consciousness of a person.
D) The bulbar synchronizing region causes the rapid eye movement (REM) sleep in most normal adults.

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Joseph Kwasigroch · Accepted Answer

Final Answer : C, Explanation :  Circadian rhythms are cyclical rhythms that are part of everyday life.The most familiar rhythm is the 24-hour day-night cycle known as the diurnal or circadian rhythm.It is not longer than 24 hours.The NREM stage is the part of the sleep cycle that most people experience in a low-stimulus environment.The ascending reticular activating system located in the upper brainstem is believed to contain special cells that maintain alertness and wakefulness.The bulbar synchronizing region is the area of the brain where serotonin is released to produce sleep.It is not responsible for REM sleep.

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