Where are the normal pacemaker and the backup pacemaker of the heart located?
Answer: The normal pacemaker of the heart is known as Sino- atrial (SA node) which is located in the right atrium of the heart, whereas, the backup pacemaker of the heart is known as Atrio- ventricular and it is situated in the centre of the heart along the right atrim (AV node) (Rhodes, 2008).
Why does this patient have a bradycardia?
Answer: The patient has bradycardia as a result of occlusion in the right coronary artery (Serrano Jr et al., 1999). Infarction in the right coronary artery is known to give rise to bradycardia.
What parts of the heart have the fastest and slowest conduction velocities?
Answer: The Purkinje fibres have the fastest conduction velocities whereas the AV ...
