How many nodal tissues (specialized cardiac m | vedclass

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(B) The human heart contains two specialized nodal tissues: $1$. The $Sino-atrial$ $node$ $(SAN)$, located in the right upper corner of the right atri

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(B) The human heart contains two specialized nodal tissues: $1$. The $Sino-atrial$ $node$ $(SAN)$, located in the right upper corner of the right atrium. $2$. The $Atrio-ventricular$ $node$ $(AVN)$, located in the lower left corner of the right atrium close to the $atrio-ventricular$ septum. These nodes are responsible for generating and conducting the electrical impulses that initiate the heartbeat.

How many nodal tissues (specialized cardiac musculature) are present in the human heart?

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