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Nerve and cardiac impulse
The first step of cardiac conduction is impulse generation. The sinoatrial (SA) node (also referred to as the pacemaker of the heart) contracts, generating nerve impulses that travel throughout the heart wall. This causes both atria to contract. The ...See more
SA node is located in the upper wall of the right atrium.
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Nerve & Cardiac Impulse eb kns 2018.ppt
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