Multiple Choice
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 occur.
Correct Answer:
Verified
Correct Answer:
Verified
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