The Electrical Depolarization Which Spreads Through the Heart Musculature and Precedes

question 64

Multiple Choice

The electrical depolarization which spreads through the heart musculature and precedes contraction of atria and ventricles is dependent upon the rapid inward diffusion of which of the following ions?

• A)Sodium
• B)Calcium
• C)Nitrate
• D)Chloride
• E)Potassium

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Growth

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Normal Growth

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The percentage change in the value of an investment over a one-year period, including dividends, interest, and capital gains.