Post-ganglionic nerve fibres of sympathetic system are
A
Adrenergic
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B
Cholingergic
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C
Both A and B
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D
None of the above
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Solution
The correct option is A Adrenergic The fibres connecting the neuronal ganglion to the effector organ are known as postganglionic fibres. These nerve fibres are cholinergic in the parasympathetic system and adrenergic in the sympathetic system. The nerve fibre for which the neurotransmitter is acetylcholine is said to be cholinergic. The nerve fibres for which the neurotransmitter are adrenaline and noradrenaline are said to be adrenergic. Thus the correct answer is option A.