Order the steps involved in conveying an impulse from the atrium to the ventricl
ID: 3513531 • Letter: O
Question
Order the steps involved in conveying an impulse from the atrium to the ventricles in the heart's electrical conduction system.
SA node fires
[ Choose ] Step 5 Step 4 Step 3 Step 1 Step 2
AV node fires
[ Choose ] Step 5 Step 4 Step 3 Step 1 Step 2
Signal travels through Bundle of His
[ Choose ] Step 5 Step 4 Step 3 Step 1 Step 2
Signal travels through R/L interventricular bundle branches
[ Choose ] Step 5 Step 4 Step 3 Step 1 Step 2
Signal travels through Purkinje Fibers
[ Choose ] Step 5 Step 4 Step 3 Step 1 Step 2
Explanation / Answer
SA node fires : Step 1
AV node fires : Step 2
Signal travels through Bundle of His : Step 3
Signal travels through R/L interventricular bundle branches : Step 4
Signal travels through Purkinje Fibers : Step 5
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