Synaptic Transmission

Item #3 of 10

Which of the following may occur following with the release of neurotransmitters?

triggering of an action potential at the postsynaptic membrane;

increased neurotransmitter levels in the synaptic cleft;

receptor site binding;

enzyme inactivation;

all of the above alternatives are correct;

CORRECT - Yes, following the release of neurotransmitters into the synaptic cleft they may bind to receptor sites and if sufficient may trigger an action potential at the postsynaptic membrane. Neurotransmiters may then be inactivated by enzymes present in the synaptic cleft.

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		triggering of an action potential at the postsynaptic membrane;
		increased neurotransmitter levels in the synaptic cleft;
		receptor site binding;
		enzyme inactivation;
		all of the above alternatives are correct;