What initiates the heart's electrical stimulation?

Understanding the Cardiac Conduction System

Interactive Video
•
Physical Ed
•
9th Grade
•
Hard
Matthew Crouchman
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bundle of His
Purkinje fibers
Atrioventricular node
Sinoatrial node
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the sinoatrial node?
To contract the ventricles
To close the heart valves
To regulate blood pressure
To set the pace of the heartbeat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the signal from the SA node affect the atria?
It stops their contraction
It causes atrial systole
It causes them to relax
It has no effect
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where is the AV node located?
Between the ventricles
Between the atria and ventricles
Outside the heart
Inside the SA node
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the AV node play in heart contraction?
It contracts the atria
It pumps blood to the body
It relays the signal to the ventricles
It generates the initial heartbeat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the bundle of His?
To pump blood
To relax the heart
To receive signals from the AV node
To separate the signal into left and right branches
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During atrial systole, what happens to the ventricles?
They contract
They eject blood
They relax
They fill with blood
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