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.

Following acute multiple trauma, hypothalamic stimulation of the sympathetic nervous system and adrenal glands causes an increase in circulating corticoids and catecholamines, or a stress response.