MDCAT Physics MCQ #648

A patient is diagnosed with a condition that affects the heart's electrical conduction system. Which process is responsible for the slow depolarization of cardiac cells in this situation?

MDCAT Physics MCQ #648

  1. Question 1

    Q1. A patient is diagnosed with a condition that affects the heart's electrical conduction system. Which process is responsible for the slow depolarization of cardiac cells in this situation?

    • A) Fast sodium current in cardiac cells
    • B) Sodium-chloride cotransport in cardiac muscle cells
    • C) Slow calcium current in cardiac cells
    • D) Potassium channel opening in cardiac cells

    Answer: Slow calcium current in cardiac cells

    Explanation: Slow calcium current is responsible for slow depolarization in cardiac cells, while the other options are not directly involved in this process.