Parasympathetic

Two ANS Divisions

Comparing effects of the two divisions of the ANS

Actions of Parasympathetic Nerves

Actions of Sympathetic Nerves

Constrict pupils

Dilates pupils

Stimulate saliva

Inhibit salivation

Slow heartbeat/Dilate blood vessels

Increase heartbeat/Constricts blood vessels

Constrict airways

Relax airways

Stimulate activity of stomach

Inhibit activity of stomach

Inhibit release of glucose; stimulate gallbladder

Stimulate release of glucose; inhibit gallbladder

Stimulate activity of intestines

Inhibit activity of intestines

Contract bladder

Relax bladder

Secrete Acetylcholine

Secrete epinephrine and norepinephrine