Sympathetic nervous system

The sympathetic nervous system is one of the two divisions of the autonomic nervous system. The sympathetic nervous system accelerates the heart rate, constricts blood vessels, and raises blood pressure.

See also

• Parasympathetic nervous system
• Epinephrine

Nervous system

Brain - Spinal cord; - Central nervous system; - Peripheral nervous system; - Somatic nervous system; - Autonomic nervous system; - Sympathetic nervous system; - Parasympathetic nervous system;