What Is The Suprachiasmatic Nucleus?

The suprachiasmatic nuclei (SCN) are a pair of small structures in the hypothalamus that serve as the primary circadian pacemaker in mammals. Each SCN contains roughly 10,000 neurons that can generate independent circadian rhythms. This group of nerve cells controls the body's circadian rhythm and is located above the optic chiasm. The SCN is considered to be the principal circadian clock in the brain and is responsible for regulating the sleep-wake cycle.

The suprachiasmatic nucleus (SCN) is a pair of small structures in the hypothalamus that act as the primary circadian pacemaker in mammals. Each SCN contains approximately 10,000 neurons that can create independent circadian rhythms. This group of nerve cells regulates the body's circadian rhythm and is positioned above the optic chiasm. The SCN is recognized as the principal circadian clock in the brain and is responsible for managing the sleep-wake cycle.

Sources

Generation of circadian rhythms in the suprachiasmatic nucleus | Nature Reviews NeuroscienceSuprachiasmatic Nucleus: Cell Autonomy and Network Properties - PMC - NCBISuprachiasmatic Nucleus - an overview | ScienceDirect TopicsSuprachiasmatic nucleus - Wikipedia
How Does the Suprachiasmatic Nucleus (SCN) Control Circadian Rhythm?Circadian Rhythms

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