Assume That Several Thousand Presynaptic Neurons Synapse with a Single

Multiple Choice

Assume that several thousand presynaptic neurons synapse with a single postsynaptic neuron.The various presynaptic neurons release ten different neurotransmitters,which are bound by specific (and varying) receptors on the postsynaptic neuron.For an action potential to be generated in the postsynaptic neuron,what must occur?

A) All neurotransmitter receptors must be ionotropic.
B) All neurotransmitter receptors must be metabotropic.
C) All postsynaptic potentials must be greater than the threshold potential.
D) There must be more IPSPs than EPSPs occurring at the same time and place.
E) The postsynaptic potentials occurring at a single time must sum to a value greater than the threshold potential.