Question

Preganglionic sympathetic fibres are

• A. Adrenergic
• B. Cholinergic
• C. Synergic
• D. Hypertonic

Answer 1

The correct option is B Cholinergic

All the preganglionic fibres in the sympathetic division or in the parasympathetic division are cholinergic in nature. These fibres use acetylcholine as their neurotransmitter and hence, they are called as cholinergic. There are terminal knobs which secrete the neurotransmitter and release them when there is conduction of the impulse at the synaptic junctions.

Thus, the correct answer is option B.