The ________ contains the primary biological clock that controls sleep-wake cycles in the rat.
A) intergeniculate leaflet
B) pineal gland
C) suprachiasmatic nucleus
D) pretectal area
E) superior colliculus

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) is a structure located in the hypothalamus of the brain that contains the primary biological clock that regulates the sleep-wake cycle in mammals, including rats. The other options are not involved in regulating sleep-wake cycles in the same way as the SCN.

The ________ Contains the Primary Biological Clock That Controls Sleep-Wake