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Temperament is thought to be fairly well established at birth.
Cardiac Conduction System
A system of specialized muscle tissues in the heart that initiates and coordinates the contraction of the heart, regulating its rhythm.
Purkinje Fibers
Specialized fibers in the heart that help regulate the heart's rhythm by conducting electrical impulses swiftly.
AV Bundle
The His bundle, a group of specialized cardiac muscle cells designed for conducting electricity, conveys the electrical signals from the AV node to the apex where the fascicular branches begin.
Cardiac Cycle
The sequence of events that occur in the heart during one complete heartbeat, encompassing both diastole and systole phases.
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