Verified Answer :

Kalahira

If the production of saliva is increased by the symphatetic nervous system (SNS) then, the parasymphathetic nervous system (PNS) does almost exactly the opposite of the action of the SNS. Therefore, for this item what is done by the parasymphatetic nervous system is to decrease the production.

W0lf93

If the sympathetic nervous system increases the production of saliva, the parasympathetic system: Decreases it
Parasymphatetic system always worked at the opposite direction of the sympathetic system. If the sympathetic increase the production of saliva the parasympathetic will work to retain. If the sympathetic increse the heart rate, parasympatheric will work to slowed it down.

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