Nerve06/autonomic nervous system and synapses/synaptic transmitter of the autonomic nervous system

The synaptic transmitters of pre- and post- ganglionic neurons of the autonomic nerves are known. In both the sympathetic and para-sympathetic nerves, the transmitter from the pre-ganglionic neurons at the ganglia, is the acetylcholine. At the sympathetic post-ganglionic nerve ending, noradrenaline, also known as norepinephrine is released to the innervating organs. At the parasympathetic post-ganglionic nerve ending, acetylcholine is the transmitter.

NOTE: There are cholinergic sympathetic post-ganglionic neurons, in which the transmitter is acetylcholine, such as in sweat glands.

Challenge Quiz

1.

In sympathetic pre-ganglionic neurons, acetylcholine. noradrenaline  正解! is released, and in sympathetic post-ganglionic neurons, acetylcholine.noradrenaline  正解! is released .

2.

In parasympathetic pre-ganglionic neurons, acetylcholine. noradrenaline  正解! is released, and in parasympathetic post-ganglionic neurons, acetylcholine. noradrenaline  正解! is released.

3.

Acetylcholine is the synaptic transmitter in (excluding the cholinergic) sympathetic pre-ganglionic neuron. (excluding the cholinergic) sympathetic post-ganglionic neuron.parasympathetic pre-ganglionic neuron.parasympathetic post-ganglionic neuron  正解!

4.

Noradrenaline is the synaptic transmitter in (excluding the cholinergic) sympathetic pre-ganglionic neuron.(excluding the cholinergic) sympathetic post-ganglionic neuron. parasympathetic pre-ganglionic neuron. parasympathetic post-ganglionic neuron  正解!

5.

Catecholamine includes acetylcholine.adrenaline (epinephrine).noradrenaline (norepinephrine)  正解!.