threshold of an action potential? Voltage-gated calcium channels the sodium/potassium pump
ligand-gated sodium channels at the axon terminal voltage-gated sodium channels at the axon
hillock BOTH sodium and potassium leaky channels
Solution
Q: Which of the following choices BEST accounts for the ionic basis of the \"all or none\"
threshold of an action potential?
Answer: d) Voltage-gated sodium channels at the axon hillock