Question
Tabulate the differences between sympathetic and parasympathetic neural system?

Answer

Sympathetic Neural system

(SNS)
Parasympathetic Neural system (PNS)
1SNS originates in the thoracic

and lumbar region of the spinal

cord.
PNS originates in the cranial region of

the brain and the sacral region of the

spinal cord.
2Sympathetic ganglia are linked

up to form a chain.
Its ganglia remain isolated.
3Preganglionic fibres are short

and the postganglionic fibres

are long.
Preganglionic fibres are long and the

postganglionic fibres are short.
4Noradrenaline is produced at

the terminal ends of the

postganglionic fibres at the

effector organs. Hence the

system is adrenergic.
Acetylcholine is produced at the

terminal ends of the postganglionic

fibres at the effector organs. Hence the

system is cholinergic.
5Active during stressful

conditions preparing the body

to face them.
Active during relaxing times restoring

normal activity after a stress.
6The overall effect is excitatory

and stimulating.
The overall effect is inhibitory.
7It is considered as the flight or

fight system.
It is considered as 'The Rest and Digest

System' or 'The Feed and Breed System'.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free