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WorksheetsComprehension Check Electrical Conductivity of the Heart
Total questions: 34
Worksheet time: 26mins
The valves between the atria and ventricles are known as the ________ valves.
atrioventricular
sinoatrial
semilunar
pulmonary
Which label is representing the Purkinje fibers?
A
C
D
E
B
What area of the heart's electrical conduction is known as the "pacemaker" of the heart?
Purknife fibers
SA node
Bundle of his
Interventricular Septum
What area of the heart is responsible for the delay of conduction between the atrium and ventricles?
Right bundle branch
AV node
Bundle of his
SA node
True or False: The AV node is located in the left atrium.
True
False
True or False: Depolarization of the heart muscle is when the muscle contracts and repolarization is when the heart muscle rests.
True
False
Because the SA node initiates 1 cardiac cycle, it fires at a rate of
40-60 bpm
80-90 bpm
60-80 bpm
60-100 bpm
What part of the heart's electrical system is known as the "gatekeeper" because it delays the electrical impulse?
AV node
Gap junction
Purkinje Fibers
SA node
What is happening in the P-wave of an EKG?
Atria relaxes because the AV node fired a signal
Atria contracts because the AV node fired a signal
Atria contracts because the SA node fired a signal
Atria relaxes because the SA node fired a signal
True and False: The SA node is located in the left atrium.
True
False
The natural pacemaker of the heart is the
AV node (Atrioventricular node)
SA node (Sinoatrial node)
Brainstem
Purkinje fibers
Depolarization of a heart chamber, such as the left atrium, means that it has
contracted
relaxed
The P wave on an ECG printout represents
contraction of the ventricles
relaxation of the ventricles
contraction of the atria
relaxation of the atria
The T wave on an ECG printout represents
contraction of the ventricles
relaxation of the ventricles
contraction of the atria
relaxation of the atria
What is going on in the heart during the QRS complex
SA node triggers depolarization in atria
AV node triggers depolarization in ventricle, the main pumpung action
Delay caused by the SA node
Repolarization of the ventricle
What is going on in the heart during the P-R Interval
SA node triggers depolarization in atria
AV node triggers depolarization in ventricle, the main pumpung action
Delay caused by the AV node
Repolarization of the ventricle
The outer layer of the heart that is basically a fluid filled sac
Pericardium
Myocardium
Endocardium
The term that means the heart is contracting
diastole
systole
tachycardia
fibrillation
CPR stands for .....
Circulatory Pulmonary Resuscitation
Cardiopulmonary Reflex
Cardio Pulse Response
Cardiopulmonary Resuscitation
Blood Pressure is measured in ...
BP
mmHg
mm
ms
mLHG
Which of the following is the correct definition of Ischemia?
lack of adequate blood supply to the heart muscle
a rapid uncoordinated quivering of the ventricles
rapid heart rate over 100 beats per minute (bpm)
heart rate that is substantially slower than normal, less than 60 beats per minute (bpm)
Which of the following is the correct definition of Bradycardia?
lack of adequate blood supply to the heart muscle
a rapid uncoordinated quivering of the ventricles
rapid heart rate over 100 beats per minute (bpm)
heart rate that is substantially slower than normal, less than 60 beats per minute (bpm)
What part of the Intrinsic Conduction System is located inside the interventricular septum?
Purkinje Fibers
SA & AV Nodes
Bundle Branches
Superior Vena Cava
What is the final destination of the electrical impulse in the heart?
Purkinje Fibers
SA & AV Nodes
Bundle Branches
Superior Vena Cava
What is also called the Bundle of HIs?
Sinoatrial Bundle
Atrioventricular Bundle
Purkinje Fibers
SA & AV Nodes
