Multiple Choice
Which of the following is true regarding HCN channels in the neuronal membrane?
A) They are responsible for the bulk of the flow of potassium from the cell at rest.
B) They are voltage-activated at hyperpolarized membrane potentials.
C) They are nonspecific ion channels that allow chloride ions to flow into the cell.
D) They have a 4:1 ratio of potassium to sodium, allowing sodium to flow into the cell.
E) They are blocked by tetrodotoxin.
Correct Answer:
Verified
Correct Answer:
Verified
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