Multiple choice

If the circumflex artery gives off the posterior interventricular artery, then what is arterial supply called?

  1. Right dominance

  2. Left dominance

  3. Balanced dominance

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the circumflex artery (branch of left coronary) supplies the posterior interventricular artery, it is called left dominance. Normally, the right coronary artery supplies this vessel (right dominance, seen in 70-80% of people).

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