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WorksheetsHeart Structure & Function
Total questions: 35
Worksheet time: 36mins
Name
Class
Date
1.
This layer encloses the heart
a)
myocardium
b)
pericardium
c)
endocardium
d)
epicardium
2.
The space between the layers of the pericardium that contains fluid to reduce friction
a)
pericardial cavity
b)
epicardium
c)
endocardium
d)
myocardium
3.
One complete heartbeat
a)
ECG
b)
systole
c)
diastole
d)
cardiac cycle
4.
The name of the arteries that feed the heart muscle
a)
capillaries
b)
coronary
c)
chordae tendineae
d)
coronary sinus
5.
The inner layer in the wall of the heart
a)
endocardium
b)
myocardium
c)
epicardium
d)
septum
6.
The fibrous chords that attach to the cusps of the valves
a)
Purkinje fibers
b)
chordae tendineae
c)
papillary muscles
d)
cusps
7.
What is the main organ of the circulatory system?
a)
bladder
b)
heart
c)
veins
d)
arteries
8.
SA node is known by this name as it control the rate of the heartbeat
a)
AV node
b)
Purkinje fibers
c)
SV node
d)
pacemaker
9.
A recording of electrical changes that occur during the cardiac cycle
a)
blood pressure reading
b)
ECG
c)
QRS wave
d)
t Wave
10.
Oxygen-poor blood flows into what atrium?
a)
left
b)
bottom
c)
right
d)
top
11.
What is the aorta?
a)
a muscular tube
b)
regulate blood flow
c)
a small vein
d)
the main artery of the body
12.
The two chambers of the heart which receive blood are known as the _________
a)
atria
b)
ventricles
c)
systemics
d)
pulmonic
13.
The valves between the atria and ventricles are known as the ________ valves.
a)
atrioventricular
b)
aortic
c)
semilunar
d)
pulmonary
14.
Blood leaves the right ventricle through the ___________.
a)
pulmonary artery
b)
aorta
c)
superior vena cava
d)
right atrium
15.
Pulmonary circulation involves blood flow to and from the heart and the _______.
a)
body
b)
digestive organs
c)
brain
d)
lungs
16.
What does letter D represent?
a)
aorta
b)
left atrium
c)
left ventricle
d)
right atrium
17.
What does letter B represent?
a)
aorta
b)
superior vena cava
c)
inferior vena cava
d)
right pulmonary artery
18.
Blood passes from
a)
ventricle to atria
b)
aorta to pulmonary trunk
c)
atria to ventricle
d)
atria to atria
19.
What carries the oxygenated blood from the lungs to the left atrium of the heart?
a)
vena cava
b)
aorta
c)
pulmonary vein
d)
pulmonary artery
20.
What are the functions of the tricuspid and bicuspid valves?
a)
prevent blood from leaking back into he ventricles
b)
prevent blood from leaking back into the atria
c)
allow blood to flow into the atria
d)
allow blood to leave the ventricles
21.
Which of the following define diastole and systole
a)
systole is the contraction of the heart and diastole is the relaxation of the heart
b)
diastole is the contraction of the heart and systole is the relaxation of the heart
c)
diastole and systole are both contractions of the heart
d)
diastole and systole are both relaxation phases of the heart
22.
What is ECG?
a)
electrocardiogram
b)
a tool that collects electrical changes in the heart muscle
c)
will detect any abnormal rhythm of the heart
d)
all of the above
23.
Freshly oxygenated blood is delivered to the _____________ and then it passes into the __________ to be pumped to the entire body.
a)
right ventricle; right atrium
b)
left ventricle; left atrium
c)
left atrium; left ventricle
d)
right atrium; right ventricle
24.
The most muscular chamber of the heart is the
a)
left ventricle
b)
left atrium
c)
right atrium
d)
right ventricle
25.
The role of the atrioventricular node (AV node) is to
a)
initiate a sinus rhythm
b)
conduct impulses to the sinoatrial node (SA node)
c)
initiate ventricular depolarization
d)
slow down impulses so that the atria can contract to fill the adjacent ventricles with blood
26.
The P wave of an ECG represents
a)
atrial repolarization
b)
atrial depolarization
c)
ventricular repolarization
d)
ventricular depolarization
27.
Which part of the ECG corresponds to the repolarization of the ventricle?
a)
P wave
b)
QRS complex
c)
T wave
d)
none of the above
28.
The second heart sound (the dup of the lub-dup) is caused by the
a)
opening of the pulmonary and aortic valves
b)
closure of the tricuspid and bicuspid valves
c)
closure of the pulmonary and aortic valves
d)
opening of the tricuspid and bicuspid valves
29.
Which valve separates the left atrium from the left ventricle?
a)
tricuspid
b)
mitral
c)
pulmonary
d)
aortic
30.
Place the following in the correct order:
1. atria contract
2. AV node
3. Bundle of His
4. Purkinje fibers
5. SA node
6. ventricles contract
1. atria contract
2. AV node
3. Bundle of His
4. Purkinje fibers
5. SA node
6. ventricles contract
a)
5, 1, 2, 3, 4, 6
b)
2, 1, 5, 3, 4, 6
c)
5, 6, 2, 3, 4, 1
d)
2, 6, 5, 3, 4, 1
31.
The name given to the study of the heart structure and function
a)
cardiology
b)
epidemiology
c)
endocrinology
d)
biology
32.
During diastole, where is the blood pressure higher?
a)
atria
b)
ventricles
c)
aorta
d)
pulmonary arteries
33.
What makes the heart sounds?
a)
The valves opening and closing
b)
The atria contracting
c)
The ventricles contracting
d)
The arteries pulsating
34.
Where is the sinoatrial node located?
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
35.
What is pulmonary circulation?
a)
Blood travelling to and from the lungs
b)
Blood travelling to and from the body
c)
A blood clot in the lungs
d)
The vessel that brings blood to the lungs
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