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) of the brain is the location of the internal pacemaker that sets biological rhythms, also known as the circadian clock. It receives input from photoreceptors in the eye and regulates a variety of physiological processes, including the sleep-wake cycle, hormone secretion, and metabolism.

What Is the Location of the Internal Pacemaker That Sets