THE NORMAL HEART ELECTRICAL IMPULSE.

Normal Sinus Rhythm. A heart rate of 60 to 100bpm.(beat per minute) AV node=Transmission of SA signal from atrium to ventricles. SA node is the electrical pacemaker of the heart. Tachycardia :Meaning fast heart rate.Heart rate is fast, may be regular or irregular greater than 100 bpm. There are many types of tachycardia. Atrial fibrillation:An …