What is the location of the internal pacemaker that sets biological rhythms?
A) suprachiasmatic nucleus of the brain
B) ventricles of the heart
C) endocrine gland in the gonads
D) photoreceptors of the eye
E) the adrenal glands

Question

Quizplus · Accepted Answer

The suprachiasmatic nucleus (SCN) is located in the hypothalamus of the brain and is the primary internal pacemaker responsible for setting biological rhythms such as the sleep-wake cycle.

What Is the Location of the Internal Pacemaker That Sets