Assertion: brain's neurotransmitter | /r/CapableOf | influence trans-membrane ion flow
Facets:
value: to increase excitatory
type: PURPOSE
value: to increase decrease
type: PURPOSE
Source sentences:
text: A neurotransmitter influences trans-membrane ion flow either to increase (excitatory) or to decrease (inhibitory) the probability that the cell with which it comes in contact will produce an action potential.