QuestionSBA
QuestionChoice
This is the role of the atrioventricular valves (tricuspid and mitral valves).
10005619
d
Prevents blood from following backwards into the atria
QuestionChoice
The atrioventricular node delays the transmission of the action potential between the atria and the ventricles to allow the ventricles to efficiently fill with blood. It also prevents abnormal atrial rhythms from being transmitted to the ventricles.
10005616
a
Delays the conduction of action potentials from the atria to the ventricles
QuestionChoice
This is the role of the left and right bundle branches, which form from the Bundle of His.
10005620
e
Transmits the action potential up through the ventricles causing ventricular contraction
QuestionChoice
This is the role of the Bundle of His.
10005618
c
Conducts action potentials through the ventricles
QuestionChoice
This is the role of the sinoatrial node in the heart. It is known as the "pacemaker" of the heart.
10005617
b
Spontaneously generates action potentials to cause contraction of the heart
Concept
Chapter
2693
3699
Heart Block
Topic
134
Cardiology
13670
A patient is awaiting an ECG for suspected heart block, which is most likely due to a problem with the AV node.

Which of these is a role of the atrioventricular node?
a