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Which of the following ions is primarily responsible for phase 0 depolarization of the SA node? (Waniewski)

a) Na
b) Mg²+
c) K
d) Ca²+

User Alma
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1 Answer

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Final answer:

The primary ion responsible for phase 0 depolarization of the SA node is the Na+ ion.

Step-by-step explanation:

The primary ion responsible for phase 0 depolarization of the SA node is the Na+ ion.

User Vishal Shetty
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