If suprachiasmatic nucleus neurons are disconnected from the rest of the brain, they ____.
A) no longer produce any activity
B) continue to produce activity that follows a circadian rhythm
C) produce a 20-hour rhythm
D) produce spontaneous bursts of activity, but on no rhythmic pattern

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus is responsible for regulating circadian rhythms in the body. If these neurons are disconnected from the rest of the brain, they still continue to produce activity that follows a circadian rhythm. This has been demonstrated in studies on animals where the suprachiasmatic nucleus was isolated and monitored for activity.

If Suprachiasmatic Nucleus Neurons Are Disconnected from the Rest of the Brain