Once an SA Nodal Cell Reaches Threshold, the Depolarization Phase

question 115

Multiple Choice

Once an SA nodal cell reaches threshold, the depolarization phase occurs during which

• A) potassium comes in through fast voltage-gated channels.
• B) calcium comes in through fast voltage-gated channels.
• C) potassium moves out through fast voltage-gated channels.
• D) sodium moves out through slow voltage-gated channels.
• E) calcium moves out through slow voltage-gated channels.

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Definitions:

Surgical Error

A preventable mistake during surgery that can result from improper planning, miscommunication, or technical mistakes, leading to complications or harm to the patient.

Survey

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The tendency of observers to see what they expect to see.

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The phenomenon where the act of observing or measuring a system affects the system itself.