5 Questions
Which structure in the heart acts as the cardiac pacemaker?
Sinoatrial (SA) node
What may cause the death of pacemaker cells or conducting tissue in the heart?
An infarction
Which factor is not mentioned as a potential cause of arrhythmias?
High cholesterol levels
Which part of the heart conducts the electrical current throughout the ventricular tissue?
Purkinje fibers
What is the normal resting heart rate maintained by?
(SA) node
Test your knowledge about arrhythmia, a condition characterized by changes in the normal rate or rhythm of the heart. Learn about the key structures involved in the conduction of electrical impulses through the heart muscle.
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