The regulation of awake-asleep cycles appears to involve an interplay between brain stem nuclei that use different neurotransmitters. The one that favors alertness is ________ and the other promoting deep sleep is ________.
A) acetylcholine; serotonin
B) serotonin; norepinephrine
C) norepinephrine; serotonin
D) dopamine; GABA
E) glutamate; serotonin

Question

Quizplus · Accepted Answer

The neurotransmitter that favors alertness is believed to be norepinephrine while the one responsible for deep sleep is believed to be serotonin. Therefore, option C is the correct answer.

The Regulation of Awake-Asleep Cycles Appears to Involve an Interplay