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This document summarizes the nerve supply and conduction system of the heart. It describes that the heart receives sympathetic innervation from the T1-T5 spinal segments and parasympathetic innervation from the nucleus ambiguus. The SA node and AV node receive dominant sympathetic and parasympathetic innervation, respectively. The conductive system transmits cardiac impulses and includes the SA node, AV node, Bundle of His and Purkinje fibers. An electrocardiogram (ECG) records and graphs the electrical act

Author

devdsantosh

Language

EN