The CNS is located in the skull and vertebral canal ... learning, and sleep. Your sympathetic nervous system hormones temporarily increase your ability to manage urgent matters and exert intense ...

Alpha receptor agonists are substances that activate the sympathetic nervous system by stimulation of ... Alpha receptors are located in smooth muscle including in the arteries.

At the same time, the sympathetic nervous system dials back functions that ... Other internal organs also rely on specialized neurons located outside the brain and spinal cord.