Adenosine produces sleepiness by
A) interacting with the SCN.
B) promoting the release of melatonin.
C) inhibiting the activity of neurons releasing ACh, serotonin, and norepinephrine.
D) stimulating the activity of neurons releasing ACh, serotonin, and norepinephrine.

Question

Quizplus · Accepted Answer

Adenosine inhibits the activity of neurons releasing ACh, serotonin, and norepinephrine, which leads to sleepiness. This inhibition of neurotransmitter release reduces brain activity and promotes a state of relaxation and ultimately sleep.

Adenosine Produces Sleepiness by