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WorksheetsMT- The Heart and Blood Vessels
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
The main function of the cardiovascular system is to transport nutrients, oxygen, and hormones to cells throughout the body and remove metabolic wastes (carbon dioxide, nitrogenous wastes).
a)
True
b)
False
2.
The function of the right side of the heart is to pump blood through the systemic circulation of the body.
a)
True
b)
False
3.
Deoxygenated blood from the body returns to the heart by way of the superior and inferior vena cava.
a)
True
b)
False
4.
The atria serve as receiving reservoirs than pumping stations.
a)
True
b)
False
5.
The heart’s natural pacemaker is termed the:
a)
sinoatrial node
b)
atrioventricular node
c)
bundle of His
d)
Purkinje fibers
6.
The exchange of gases and nutrients between blood and tissues is a major function of:
a)
arterioles
b)
arteries
c)
capillaries
d)
veins
7.
Which of the following statements best describes arteries?
a)
all arteries carry oxygenated blood towards the heart
b)
all arteries contain valves to prevent the back-flow of blood
c)
all arteries carry blood away from the heart
8.
The circulatory pathway that carries blood from the digestive tract towards the liver is termed the:
a)
coronary circuit
b)
cerebral circuit
c)
hepatic-portal circuit
d)
pulmonary circuit
9.
Blood in the pulmonary arteries:
a)
enters the heart’s right ventricle
b)
is heading towards the lungs
c)
leaves the left ventricle to enter the aorta
d)
flows from the lungs towards the heart’s left atrium
10.
Located between the right atrium and right ventricle is the:
a)
tricuspid atrioventricular valve
b)
bicuspid/mitral atrioventricular valve
c)
pulmonary semilunar valve
d)
aortic semilunar valve
11.
The pulmonary veins:
a)
carry oxygenated blood away from the heart
b)
carry oxygenated blood towards the heart
c)
carry deoxygenated blood away from the heart
d)
carry deoxygenated blood towards the heart
12.
Which of the following statements about the movement of materials at the ‘systemic’ capillary level is CORRECT?
a)
oxygen is actively transported up its concentration gradient
b)
waste products such as CO2 follow the same general pathway as O2
c)
CO2 moves from its site of production into the interstitial fluid
d)
if capillary blood osmotic pressure is much greater than interstitial fluid osmotic pressure, tissue edema will likely result
13.
Blood leaving the left atrium normally immediately flows through the:
a)
tricuspid atrioventricular valve
b)
bicuspid/mitral atrioventricular valve
c)
pulmonary semilunar valve
d)
aortic semilunar valve
14.
Which of the following structures are directly involved in the "pulmonary circuit"?
a)
superior vena cava, right atrium and left ventricle
b)
right ventricle, pulmonary arteries and left atrium
c)
left ventricle, aorta and inferior vena cava
d)
right atrium, aorta and left ventricle
15.
Which of the following structures are directly involved in the "systemic circuit"?
a)
superior vena cava, right ventricle and left ventricle
b)
right ventricle, pulmonary arteries and left atrium
c)
left ventricle, aorta and inferior vena cava
d)
right atrium, pulmonary trunk and left ventricle
16.
On a normal ECG/EKG, atrial repolarization occurs during the:
a)
P wave
b)
QRS wave
c)
T wave
17.
On a normal ECG/EKG, ventricular depolarization occurs during the:
a)
P wave
b)
QRS complex
c)
T wave
18.
The first heart sound, ‘lub’, is a valuable aid in diagnosing:
a)
semilunar valve dysfunctions
b)
atrioventricular valve dysfunctions
19.
Following a motor vehicle accident, a large loss of blood will initially cause:
a)
a lowered BP due to a decreased cardiac output
b)
a higher BP due to an increased stroke volume
c)
no change in BP but a slower heart rate
d)
no change in BP but an increased respiration rate
20.
The left ventricle’s myocardium is thicker than the right ventricle’s myocardium in order to:
a)
accommodate a greater volume of blood
b)
increase the size of the thoracic cavity during diastole
c)
contract with a greater pressure
d)
force blood through a smaller semilunar valve
21.
The heart, is a muscular pump, beating an average of:
a)
70 times per minute
b)
70 times per second
c)
50 times per minute
d)
100 times per minute.
22.
Why is atherosclerosis especially dangerous when found in the coronary arteries?
a)
It can restrict blood flow to the heart muscle
b)
It can cause a heart attack
c)
It can lead to coronary artery disease
d)
All are correct
23.
Why is blood that flows from the lungs to the heart bright red rather than dark red?
a)
Oxygen makes it red
b)
Carbon dioxide makes it red
c)
Gastric juices produce the red colour of the blood
d)
The lungs add a pigment (dye) to blood as it flows
through them.
through them.
24.
What is the function of the blood vessels and capillaries?
a)
They pump blood to the heart
b)
They filter impurities from the blood
c)
They carry blood to all parts of the body
d)
They carry messages from the brain to the muscles
25.
Why does blood turn dark red as it circulates through the body?
a)
It starts to clot.
b)
It gets old and dirty flowing through the body
c)
The oxygen in it is replaced with carbon dioxide
d)
The farther blood is from the heart, the more dark red it is
26.
What is the organ that pumps blood all throughout the human body?
a)
The lungs
b)
The heart
c)
The kidneys
d)
The blood vessels
27.
Which structure contains the lowest amount of oxygen?
a)
pulmonary vein
b)
aorta
c)
vena cava
d)
left ventricle
28.
An ECG (EKG) measures ________.
a)
the electrical activity of the heart
b)
blood pressure
c)
blood volume
d)
the pumping action of the heart
29.
In which choice are the blood vessels correctly ranked in order of decreasing wall thickness?
a)
capillary, vein, artery
b)
artery, arteriole, capillary
c)
vein, artery, arteriole
d)
arteriole, capillary, vein
30.
Choose the correct statement.
a)
For an artery and vein of the same diameter, the vein has a thicker wall
b)
Veins contain valves and arteries do not
c)
Blood pressure is lower in arteries than in veins
d)
When empty, an artery is more likely to be collapsed than a vein
31.
Blood going to the lungs through the pulmonary arteries contains a high concentration of ______ and a low concentration of ______.
a)
oxygen; hemoglobin
b)
carbon dioxide; oxygen
c)
oxygen; carbon dioxide
d)
carbon dioxide; hemoglobin
32.
Which part of the circulation sends blood to the lungs to pick up oxygen?
a)
coronary
b)
portal
c)
pulmonary
d)
systemic
33.
Which of the following arteries is least likely to be used for determining a pulse?
a)
carotid
b)
mesenteric
c)
radial
d)
ulnar
34.
When taking blood pressure by the auscultatory method, the stethoscope is used to
a)
measure the pressure of the blood pushing against the wall of the artery
b)
listen for the turbulent blood flow in the artery
c)
measure the speed at which the blood is flowing through the artery
d)
measure the pressure of air in the cuff
35.
The heart is located on the left side of the chest.
a)
True
b)
False
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