The cardiac cycle
Authored by Craig Hancox
Biology
12th Grade
Used 388+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The emptying of the atria is controlled by the:
SA node
AV node
Purkinje fibres
Bundle of His
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The pacemaker of the heart is also known as the....
AV node
SA node
Purkinje fibres
Bundle of His
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What fibres allow the ventricles to contract?
SA
AV
Purkinje
Bundle of His
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the systole phase of the cardiac cycle, the ventricles....
Contract
Relax
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The heart muscle that these electrical signals control is known as the myocardium
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which letter/s of the ECG shows the ventricles contracting.....
P
QRS
ST
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which node delays the ventricles from firing before fully filled?
AV
SA
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