What is the role of the suprachiasmatic nucleus in sleep? a. It induces REM sleep every 90 minutes. b. It causes the pineal gland to increase the production of melatonin. c. It causes the pituitary gland to increase the release of human growth hormone. d. It causes the pituitary gland to decrease the release of human growth hormone. e. It causes the pineal gland to decrease the production of melatonin.
