In First Degree Heart Block,the pacemaker site is usually in the:
A)AV node.
B)SA node.
C)ventricles.
D)Bundle of His.

Question

Quizplus · Accepted Answer

In First Degree Heart Block, the pacemaker site is usually in the Sinoatrial (SA) node, which is the normal pacemaker of the heart. The condition is characterized by a delay in the transmission of electrical impulses from the atria to the ventricles, but the impulses still originate from the SA node.

In First Degree Heart Block,the Pacemaker Site Is Usually in The