DIFFERENCES BETWEEN SYMPATHATIC AND PARASYMPATHATIC NERVOUS SYSTEM

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SYMPATHETIC

PARASYMPATHETIC

 

FUNCTION

The primary function is to stimulate a fight-to-fight response.

The primary function is to control the rest and digest response.

 

ACTION ON SALIVARY GLANDS

It decreases saliva production.

It increases saliva production.

 

EFFECT ON URINARY RESPONSE

It helps in decreasing urinary output.

It helps in increasing urinary output.

 

EFFECT ON HEARTBEAT

It increases the heartbeat.

It decreases the heartbeat.

 

EFFECT ON GLUCOSE LEVEL

It helps in increasing the conversion of  glycogen to glucose for the energy required by muscles.

Parasympathetic system doesn’t affect the glucose level

 

EFFECT ON PUPIL

It dilates the pupil to capture more light.

It constricts the pupil.

 

EFFECT ON PULMONARY SYSTEM

It dilates the bronchial tubes to allow more air to pass through them.

It constricts the bronchial tube to control the flow of air.

 

EFFECT ON MUSCLES

It increases the stress on muscles.

It decreases the stress on muscles and relax them.

 

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