#1
Which structure is responsible for initiating the heartbeat in the heart?
#2
Which part of the heart's conduction system is known as the 'pacemaker'?
#3
What is the normal resting heart rate range for adults?
#4
What is the term for a condition where the heart's electrical impulse formation or conduction is impaired, leading to irregular heartbeats?
#5
What is the term for the condition where the heart rate is persistently above the normal range?
#6
What is the function of the bundle of His in the heart?
#7
Which part of the heart's electrical conduction system is responsible for transmitting impulses rapidly throughout the ventricles?
#8
Which wave in an electrocardiogram (ECG/EKG) represents atrial depolarization?
#9
Which part of the heart's electrical conduction system delays impulses to allow the atria to contract before the ventricles?
#10
Which segment of an electrocardiogram (ECG/EKG) represents the time it takes for the electrical impulse to travel from the atria to the ventricles?
#11
What happens during the ST segment of an electrocardiogram (ECG/EKG)?
#12
Which electrolyte imbalance can lead to significant disturbances in the heart's electrical conduction system?
#13
What term is used to describe a complete cessation of electrical activity in the heart?
#14
Which phase of the cardiac action potential is characterized by rapid depolarization of the ventricular cells?
#15