Medical Assistant Prep / Unit 22 MAS 527 short lesson, about 20 seconds
The Conduction Pathway
Captions available
The idea
Each heartbeat follows an electrical pathway through the heart.
In practice
The signal starts in the sinoatrial node in the right atrium, passes to the atrioventricular node, then down the bundle of His and the left and right bundle branches into the ventricles.
Where people slip
A problem anywhere along this path can change the tracing.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
Something wrong in this lesson? Flag it · Sources for Medical Assistant Prep