Chapter 10 - Post Test Question and
answers rated A+ 2026/2027
The _____ supplies the right atrium and right ventricle with blood. - correct answer right coronary
artery
Stimulation of parasympathetic nerve fibers typically results in - correct answer slowed conduction thru
the atrioventricular node
The contribution of blood that is added to the ventricles and results from atrial contraction is called -
correct answer atrial kick
Semilunar valves are - correct answer aortic and pulmonic
The left main coronary artery dividies into the - correct answer anterior descending and circumflex
branches.
_____ cells are specialized cells of the electrical conduction system responsible for the spontaneous
generation and conduction of electrical impulses. - correct answer pacemaker
The absolute refractory period - correct answer begins with the onset of the QRS coplex and terminates
at approximately the apex of the T wave
The QT interval - correct answer represents the time from initial depolarization of the ventricles to the
end of ventricular repolarization
How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular? - correct
answer compare P to P intervals
, Which leads use two distinct electrodes, one of which is positive and the other negative? - correct
answer I, II, III
In sinus arrhythmia, a gradual decreasing of the heart rate is usually associated with - correct answer
expiration
An ECG rhythm strip shows a ventricular rate of 46, a regular rhythm, a PRI of 0.14 second, a QRS
duration of 0.06 second, and one upright P wave before each QRS. This rhythm is - correct answer sinus
bradycardia
Sinoatrial block is a disorder of impulse __________ and sinus arrest is a disorder of impulse _________.
- correct answer conduction, formation
Signs and symptoms experienced during a tachydysrhythmia are usually primarily related to - correct
answer decreased ventricular filling tiome and stroke volume
Examples of ectopic pacemakers are - correct answer AV junction and ventricles
A wandering atrial pacemaker rhythm with a ventricular rate of 60 to 100 bpm may also be referred to
as - correct answer multiformed atrial rhythm
The most common type of supraventricular tachycardia is - correct answer AV nodal reentrant
tachycardia (AVNRT)
What is meant by the term uncontrolled atrial fibrillation? - correct answer the overall ventricular rate
is greater than 100 bpm
answers rated A+ 2026/2027
The _____ supplies the right atrium and right ventricle with blood. - correct answer right coronary
artery
Stimulation of parasympathetic nerve fibers typically results in - correct answer slowed conduction thru
the atrioventricular node
The contribution of blood that is added to the ventricles and results from atrial contraction is called -
correct answer atrial kick
Semilunar valves are - correct answer aortic and pulmonic
The left main coronary artery dividies into the - correct answer anterior descending and circumflex
branches.
_____ cells are specialized cells of the electrical conduction system responsible for the spontaneous
generation and conduction of electrical impulses. - correct answer pacemaker
The absolute refractory period - correct answer begins with the onset of the QRS coplex and terminates
at approximately the apex of the T wave
The QT interval - correct answer represents the time from initial depolarization of the ventricles to the
end of ventricular repolarization
How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular? - correct
answer compare P to P intervals
, Which leads use two distinct electrodes, one of which is positive and the other negative? - correct
answer I, II, III
In sinus arrhythmia, a gradual decreasing of the heart rate is usually associated with - correct answer
expiration
An ECG rhythm strip shows a ventricular rate of 46, a regular rhythm, a PRI of 0.14 second, a QRS
duration of 0.06 second, and one upright P wave before each QRS. This rhythm is - correct answer sinus
bradycardia
Sinoatrial block is a disorder of impulse __________ and sinus arrest is a disorder of impulse _________.
- correct answer conduction, formation
Signs and symptoms experienced during a tachydysrhythmia are usually primarily related to - correct
answer decreased ventricular filling tiome and stroke volume
Examples of ectopic pacemakers are - correct answer AV junction and ventricles
A wandering atrial pacemaker rhythm with a ventricular rate of 60 to 100 bpm may also be referred to
as - correct answer multiformed atrial rhythm
The most common type of supraventricular tachycardia is - correct answer AV nodal reentrant
tachycardia (AVNRT)
What is meant by the term uncontrolled atrial fibrillation? - correct answer the overall ventricular rate
is greater than 100 bpm
