Which organs have antagonistic control by sympathetic and pa

Which organs have antagonistic control by sympathetic and parasympathetic divisions? Which have cooperative control, with sympathetic and parasympathetic division each contributing to a function?

Solution

Organs having antagonist control are heart, GI track,eyes.

Sympathetic system increases heart rate through SA node stimulation while parasympathetic system decreases heart rate through cholinergic stimulation.

Sympathetic system decreases or stop GI motility while parasympathetic system induces peristaltic activity.

Sympathetic system causes palpitory dilation while parasympathetic system causes pupil constriction.

Cooperative control is shown by urinary and reproductive system.

Stimulation by parasympathetic system causes erection while sympathetic system causes ejaculation.

Parasympathetic system causes action potential to increase urinary muscles contraction while sympathetic system increases muscle tone and assist in final urine discharge.