Which is the correct path of an electrical excitation from the pacemaker to a cardiocyte in the left ventricle (LV)?
A)Sinoatrial (SA) node $\rarr$ atrioventricular (AV) bundle $\rarr$ atrioventricular (AV) node $\rarr$ Purkinje fibers $\rarr$ cardiocyte in LV
B)Atrioventricular (AV) node $\rarr$ Purkinje fibers $\rarr$ atrioventricular (AV) bundle $\rarr$ sinoatrial (SA) node $\rarr$ cardiocyte in LV
C)Atrioventricular (AV) node $\rarr$sinoatrial (SA) node $\rarr$ atrioventricular (AV) bundle $\rarr$ Purkinje fibers $\rarr$ cardiocyte in LV
D)Sinoatrial (SA) node $\rarr$atrioventricular (AV) node $\rarr$ atrioventricular (AV) bundle $\rarr$ Purkinje fibers $\rarr$ cardiocyte in LV
E)Sinoatrial (SA) node $\rarr$ atrioventricular (AV) node $\rarr$ Purkinje fibers $\rarr$ atrioventricular (AV) bundle $\rarr$ cardiocyte in LV

Question

Quizplus · Accepted Answer

The correct path of electrical excitation in the heart is from the sinoatrial (SA) node to the atrioventricular (AV) node, then to the atrioventricular (AV) bundle (also known as the bundle of His), followed by the Purkinje fibers, and finally to the cardiocytes in the left ventricle.

Which Is the Correct Path of an Electrical Excitation from the Pacemaker