WorksheetsHeart and Circulatory System Quiz
Total questions: 5
Worksheet time: 4mins
Name
Class
Date
1.
Which valve is responsible for preventing backflow into the left atrium?
a)
Tricuspid valve
b)
Mitral valve
c)
Aortic valve
d)
Pulmonary valve
2.
Which part of the heart does blood enter after completing the pulmonary circuit?
a)
Right atrium
b)
Left atrium
c)
Right ventricle
d)
Left ventricle
3.
Which component of ECG cycle shows ventricular depolarization?
a)
P
b)
QRS
c)
T
d)
U
4.
Which is correct about the SA node?
a)
located in left atrium
b)
a collection of cardiac cells initiating action potentials
c)
referred to as the artificial pacemaker
d)
it is the equivalent of the AV node in birds
5.
Period of ventricular contraction
a)
systole
b)
diastole
100 %
