The Stabbing - Actions of the autonomic nervous system - Parasympathetic

4 important questions on The Stabbing - Actions of the autonomic nervous system - Parasympathetic

Where do the neurones of the parasympathetic nervous system synapse?

terminal ganglia near organs or intramural ganglia within the tissue of the organs.

Why are the effects of parasympathetic stimulation localised?

Because the preganglionic neurones do not diverge as extensively as they do in the sympathetic nervous system.

What are the effects of the neurotransmitter in the parasympathetic nervous system?

Both inhibitory and stimulatory
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Why is parasympathetic activation short and localised?

Because most of the acetylcholine is metabolised by enzymes before it travels far down a tissue:
@synaptic junction- acetylcholinesterase
@tissue- cholesterase

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