Labels:bulletin board | earth | mirror | poster | scissors | vegetarianism OCR: Actior potentials originate in the pue travel across the wall of the atruim (arrows from the SA node to the atrioventricular (AV) node Action potentials pass through the AV node and along the which extends from the AV node through the fibrous skeleton, into the interventricular septum. The AV bundle divides into right and left pue action potentials descend to the apex each ventricle Duoje the bundle branches. Action potentials are by the from he undle walls potential ventride
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