Difference in sympathetic and parasympathetic nervous system, Biology

Difference between Sympathetic and Parasympathetic Nervous System -

S.NO.

SYMPATHETIC

PERASYMPATHETIC

1.

Components are visible

Not visible

2.

Ganglions linked to form chain

Ganglions are isolated

3.

Its praganglionic fibres emerge with

With cranial & spinal both

 

spinal nerves only

 

4.

Preganglionic fibres are shorter than

longer

 

postganglionic fibres

 

5.

Adrenergic & cholinergic

Cholinergic

6.

Overall effect is excitatory

Inhibitory

7.

Active during stressfull condition

Relaxed condition

8.

Area of influance is diffused

Localized

9.

Acetylcholine + sympathin are secreted

Only actylcholine

10.

Relaxation of gut muscle

Contraction

11.

Contraction of skin muscle

Relaxation

12.

Decrease in the secretion of saliva

Increase

13.

Tightening of gut sphinctor

Loosing

14.

Vaso constriction

Vasodilation

15.

Rise in B.P.

Fall

16.

Relaxation of bladder muscle

Contraction

17.

Dialation of pupil

Contraction

18.

Dialation of bronchi

Narrowing

19.

Accelerating heart beat.

Slowing

Posted Date: 10/3/2012 2:06:55 AM | Location : United States







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