The "Undershoot" Phase of After-Hyperpolarization Is Due to

question 67

Multiple Choice

The "undershoot" phase of after-hyperpolarization is due to

• A) slow opening of voltage-gated sodium channels.
• B) sustained opening of voltage-gated potassium channels.
• C) rapid opening of voltage-gated calcium channels.
• D) slow restorative actions of the sodium-potassium ATPase.
• E) ions that move away from their open ion channels.

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