Calcium entry into the presynaptic terminal is greatest:
A) During the rising phase of the action potential.
B) At the peak of the action potential.
C) During the falling phase of the action potential.
D) During the afterhyperpolarization that follows an action potential.
E) When the action potential is in its resting phase.
Correct Answer:
Verified
Q1: Chemical synapses are typically characterized by:
A)Unidirectional and
Q2: At gap junctions,the intercellular space:
A)Widens and is
Q3: The kiss-and-run method of vesicle recycling is
Q5: At electrical synapses:
A)There is a synaptic delay
Q6: Temporal summation refers to the fact that:
A)Excitatory
Q7: The neurotransmitter gamma-aminobutyric acid (GABA):
A)Is stored in
Q8: Metabotropic receptors:
A)Trigger EPSPs whose time course is
Q9: The quantal nature of chemical synaptic transmission
Q10: Ionotropic receptors:
A)Activate second messenger cascades.
B)Trigger EPSPs that
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