Skip to main content

Questions tagged [autoreceptor]

Autoreceptors are receptors that are located presynaptically, on axon terminals that send negative feedback upon the actions of the neurotransmitter released from the axon terminal to prevent the further release of the neurotransmitter contained inside storage vesicles.

Filter by
Sorted by
Tagged with
2 votes
0 answers
17 views

Autoreceptor control of phasic and postsynaptic control of tonic signalling

I have read the following paragraph : "Whereas tonic DA signaling is affected by postsynaptic stimulation/blockade, phasic (transient) release of DA during dopaminergic cell bursting is modulated ...
Laurie1989's user avatar
4 votes
1 answer
44 views

Are there pre-synaptic alpha 2 receptors in the post-ganglionic synapses of the heart?

Are there pre-synaptic alpha 2 receptors in the post-ganglionic synapses of the heart? I haven't found any sources that clearly state whether they do or not. I'm also not sure if they exist in most ...
Dahen's user avatar
  • 323
7 votes
1 answer
113 views

Are all Autoreceptors Downregulated by their Respective Endogenous Ligands?

I know that the 5-HT1A and $\alpha$2 adrenoreceptors receptors serve as autoreceptors for serotonin (5-HT) and norepinephrine respectively and are down-regulated by repeat exposure to their respective ...
Josh Pinto's user avatar
  • 2,398