Orin is interested in learning how the body knows when it's supposed to sleep. He finds that most of his body's biological rhythms are regulated by the

Question

Quizplus · Accepted Answer

The suprachiasmatic nuclei, located in the hypothalamus, are primarily responsible for regulating the body's circadian rhythms, which include the sleep-wake cycle. These nuclei respond to light and dark signals, helping to align the body's internal clock with the external environment.

Orin Is Interested in Learning How the Body Knows When