WorksheetsCardiac Cycles & Electrical Conduction through the Heart
Total questions: 17
Worksheet time: 13mins
Name
Class
Date
1.
What part of the electrical conduction system is labelled A?
a)
SA Node
b)
AV Node
c)
AV Bundle
d)
Bundle Branches
e)
Purkinje Fibers
2.
What part of the electrical conduction system is labelled D?
a)
SA Node
b)
AV Node
c)
AV Bundle
d)
Bundle Branches
e)
Purkinje Fibers
3.
Which letter is representing the Purkinje fibers which are the final area of signal transmission before the ventricles completely contract?
a)
A
b)
B
c)
C
d)
D
e)
E
4.
What number is representing the aorta?
a)
1
b)
2
c)
3
d)
4
e)
8
5.
What is the definition of the Cardiac Cycle?
a)
the contraction of the atria
b)
the sequence of events that occur during one complete heartbeat
c)
the contraction and relaxation of the ventricles
d)
the circulation of blood in the heart
6.
Order the phases an action potential travels in the conduction system
a)
SA node--> AV bundle branches--> AV node--> Purkinje fibers
b)
SA node--> AV node--> AV bundle branches--> Purkinje fibers
c)
Av bundle branches--> AV node--> SA node--> Purkinje fibers
d)
Purkinje fibers--> SA node--> AV node--> AV bundle branches
7.
The pacemaker of the heart is also known as the....
a)
AV node
b)
SA node
c)
Purkinje fibres
d)
Bundle of His
8.
The AV node is located at...
a)
A
b)
B
c)
C
d)
D
9.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
10.
Identify part numbers 3 and 5.
a)
3: right atrium; 5: aorta
b)
3: left atrium; 5: aorta
c)
3: right atrium; 5: pulmonary artery
d)
3: left atrium; 5: pulmonary artery
11.
An EKG is actually
a)
A ratio
b)
An equation
c)
A time frame
d)
A graph
12.
An electrocardiogram measures what?
a)
The amount of pressure exerted on blood vessels.
b)
The electrical activity of the heart.
c)
How many times the heart contracts over time.
d)
The body's temperature caused by friction of blood in vessel.
13.
This triggers contraction in the atria
a)
SA node
b)
AV node
c)
QT node
d)
AV Bundles
14.
This triggers contraction in the ventricle
a)
SA node
b)
AV node
c)
QT node
d)
AV Bundles
15.
What is going on in the heart during the P wave
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle
16.
What is going on in the heart during the R-wave or QRS complex
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle
17.
What is going on in the heart during the T-wave
a)
SA node triggers depolarization in atria
b)
AV node triggers depolarization in ventricle, the main pumpung action
c)
Delay caused by the SA node
d)
Repolarization of the ventricle
100 %
