endorphins
not serotonine
a key fitting in the lock of a door
Neurotransmitter receptor sites on ligand-gated ion pores.
Dopamine is incorrect. Opiate drugs occupy the same receptor sites as endorphins.
yes bupremorphine is a semi-synthetic opioid that when it comes into contact with the brains opiate receptors, instead of bouncing rapidly in and out like pure opiates such morphine (heroin) , oxycontin, and lortab, bupremorhpine docks and saturates the receptor without bouncing in and out. Its stationary nature in the receptor is why if any other opiates are taken with bupremorphine just bounce off the receptor and flush harmlessly out of the system. Never take any opiates with bupremorphine.
Yes.
Cells known as astrocytes can remove neurotransmitters from the receptor area.
An adrenergic receptor is any of several sites in the surface membranes of cells innervated by adrenergic neurons.
Synapse
dendrites only
endorphine
Heroin