PracticeQuiz content is free on an ad-supported model.
Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.
Category - EMT-I/85
What organ has the ability of automaticity?
Answer: B - The heart has the ability of automaticity. This is the unique ability to initiate its own impulse, causing depolarization, and it is unique to the heart. The cells' primary role is to initiate the depolarization wave, resulting in organized contraction of the heart.