Multiple Choice
When several IPSPs arrive at the axon hillock rapidly in sequence from a single dendritic location, hyperpolarizing the postsynaptic cell more and more and thus preventing an action potential, this is an example of
A) temporal summation.
B) spatial summation.
C) tetanus.
D) the refractory state.
E) an action potential with an abnormally high peak of depolarization.
Correct Answer:
Verified
Correct Answer:
Verified
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Q64: The "selectivity" of a particular ion channel
Q65: In a simple synapse, neurotransmitter chemicals are
Q66: A "resting" motor neuron is expected to<br>A)
Q67: The "undershoot" phase of after-hyperpolarization is due
Q68: ATP hydrolysis directly powers the movement of<br>A)
Q69: Adjacent neurons with direct (non-neurotransmitter)action potential transfer
Q70: Neurotransmitters affect postsynaptic cells by<br>A) initiating signal
Q71: A simple nervous system<br>A) must include chemical
Q72: A graded hyperpolarization of a membrane can