22 Questions
Which node is known as the 'pacemaker' of the heart?
Sinoatrial (SA) Node
Which node gives the atria time to contract and pump all blood into the ventricles?
Atrioventricular (AV) Node
Which structure connects fibers to rapidly send an impulse from the right atrium to the left atrium?
Interatrial Node/Pathway/Bundle
Where does conduction pass from the AV node and travel through?
Bundle of His
Which nodes/fibers are involved in rapidly sending an impulse from one atrium to the other?
Interatrial Node/Pathway/Bundle
Which nodes delay conduction briefly?
Atrioventricular (AV) Node
Where does the conduction pathway bifurcate into the Right and Left Bundle Branches?
Atrioventricular (AV) Node
Which node is located in the wall of the right atrium?
Sinoatrial (SA) Node
Which structure is responsible for pacing the heart rate to the body's current demands?
Sinoatrial (SA) Node
Which structure travels through the walls of the ventricles?
Right and Left Bundle Branches
Which node gives the atria time to contract and pump all blood into the ventricles?
Atrioventricular (AV) Node
Which structure is also known as Bachmann’s Bundle?
Interatrial Node/Pathway/Bundle
What is the average cardiac output for a healthy adult?
5L/min
What is the equation for calculating cardiac output (CO)?
$CO = SV * HR$
What is the normal range for ejection fraction?
55% to 70%
What is the function of Purkinje fibers in the heart?
To spread widely across the ventricles and cause all cells of the ventricles to contract quickly
What is the function of the Sinoatrial (SA) Node in the heart?
To act as the pacemaker of the heart
What is the purpose of the Atrioventricular (AV) Node in the heart?
To delay the electrical impulse before it is conducted to the ventricles
What occurs during ventricular diastole?
Ventricles relax, filling with blood sent from the atria
What is the purpose of the Ejection Fraction measurement?
To measure the amount of blood the left ventricle pumps out with each contraction
How is blood pressure measured?
In millimeters of mercury (mmHg)
What is the average Ejection Fraction value indicating a well-functioning heart?
60%
Test your knowledge of the cardiac conduction pathway with this quiz. Explore the electrical impulses that regulate the heartbeat, including the role of the sinoatrial (SA) node and the interatrial pathway. Brush up on your understanding of how the heart contracts and pumps blood through the body.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
