When a depolarizing graded potential makes the axon membrane depolarize to threshold,
A) ligand-gated Ca+2 channels close rapidly.
B) voltage-gated Ca+2 channels open rapidly.
C) ligand-gated Na+ channels close rapidly.
D) voltage-gated Na+ channels open rapidly.
E) none of these choices.
Correct Answer:
Verified
Q20: A depolarizing graded potential
A)makes the membrane more
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