The SA node receives the initial electrical impulse that will trigger the atrial fibers to contract.

Name: The SA node receives the initial electrical impulse that will trigger the atrial fibers to contract.
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This statement is true. The SA (sinoatrial) node is known as the pacemaker of the heart, as it generates the electrical impulses that initiate the heartbeat. These impulses spread through the atria, causing them to contract and push blood into the ventricles.

The SA Node Receives the Initial Electrical Impulse That Will