WorksheetsCirculatory Unit 3
Total questions: 74
Worksheet time: 50mins
Name
Class
Date
1.
What is the main organ of the circulatory system?
a)
small intestine
b)
bone
c)
lungs
d)
heart
2.
How many types of blood vessels are in our body?
a)
1
b)
2
c)
3
d)
4
3.
Arteries carry oxygen rich blood away from the heart.
a)
True
b)
False
4.
Veins carry oxygen poor blood back to the heart.
a)
False
b)
True
5.
The job of the heart is to . . .
a)
pump blood around the body.
b)
send food to the small intestines.
c)
break down food.
d)
give energy to the body.
6.
The heart is about the size and shape of your . . .
a)
head
b)
fist
c)
hand
d)
foot
7.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
8.
______________ are the second largest blood vessel.
a)
Arteries
b)
Veins
c)
Capillaries
9.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
10.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat.
a)
respiratory
b)
digestive
c)
skeletal
d)
nervous
11.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
12.
Identify
a)
Pulmonary veins
b)
Pulmonary artery
c)
Aorta
d)
Vena cava
13.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
14.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
15.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
16.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
17.
This chamber of the heart RECEIVES blood returning from the body
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
18.
Which chambers of the heart are the thickest and strongest?
a)
Atria
b)
Ventricles
c)
Valves
d)
Aorta
19.
The aorta is the largest artery in the body. The blood leaving the aorta is full of?
a)
Oxygen
b)
Carbon Dioxide
c)
White blood Cells
d)
Potassium
20.
Thin-walled vessels that allow for the exchange of O2 , CO2, nutrients and wastes between blood cells or air sacs in the lungs
a)
Arteries
b)
Veins
c)
Capillaries
21.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
22.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
23.
Carry blood away from heart; mostly oxygen-rich
a)
Arteries
b)
Veins
c)
Capillaries
24.
Which type of blood vessel has the thickest layer of smooth muscle in its walls?
a)
Arteries
b)
Veins
c)
Capillaries
d)
Ventricles
25.
What is the main function of the heart ?
a)
The heart circulates blood, oxygen, and nutrients throughout the body.
b)
The heart is the control centers for all body activities.
c)
The heart gets rid of the wastes in your body produced by homeostasis.
d)
The heart transports , protection and regulation. Blood transports the following substances:
26.
A blood vessel that carries blood TO the heart is called ...
a)
vein
b)
capillary
c)
blood vessel
d)
artery
27.
White blood cells (WBC’s), red blood cells (RBC’s), plasma, & platelets are the 4 parts of what?
a)
blood vessels
b)
organs
c)
heart disease
d)
blood
28.
The bottom chambers of the heart are called
a)
ventricles
b)
atria
c)
vena cava
d)
valves
29.
Which part of the heart pumps deoxygenated (oxygen-poor) blood?
a)
Left side
b)
Right side
c)
Top side
d)
Bottom side
30.
When looking at the heart, which side is the right?
a)
my right
b)
my left
c)
at the apex
d)
at the base
31.
What do the arteries do?
a)
pumps blood to the heart
b)
pumps blood to and from the heart
c)
carry's blood away from the heart
d)
a muscle
32.
What is a pulmonary vein?
a)
a aorta
b)
a main blood vessel
c)
the blood vessel that carries newly oxygenated blood from the lungs
d)
it is a heart valve
33.
What is the main organ in the circulatory system?
a)
vein
b)
lung
c)
heart
d)
aorta
34.
What is the circulatory system made up of?
a)
Food, water
b)
Hands, Feet
c)
Heart, Blood Vessels, Veins, Blood
d)
Sunlight, Plants
35.
What does the circulatory system use to carry nutrients and oxygen?
a)
Blood
b)
Water
c)
Pepsi
d)
Blood Vessels
36.
What are the two main types of blood cells?
a)
orange and green blood cells
b)
red and white blood cells
c)
purple and blue blood cells
d)
blue and red blood cells
37.
What type of blood cells help fight diseases?
a)
White blood cells
b)
Blue blood cells
c)
green blood cells
d)
red blood cells
38.
What is the main function of the circulatory system?
a)
To help you breath
b)
To circulate blood throughout the body
c)
To help you walk
d)
To help digest food
39.
What is a major organ used in the circulatory system?
a)
Lungs
b)
Kidneys
c)
Liver
d)
Heart
40.
_________ Carry blood away from the heart to various organs
a)
Arteries
b)
Capillaries
c)
Veins
41.
__________ Very small tubes that connect arteries to veins; the smallest blood vessels.
a)
Veins
b)
Capillaries
c)
Arteries
42.
What do the arteries do?
a)
pumps blood to the heart
b)
pumps blood to and from the heart
c)
carry's blood away from the heart
d)
a muscle
43.
What is the main organ in the circulatory system?
a)
vein
b)
lung
c)
heart
d)
aorta
44.
What is the function of the heart?
a)
To pump blood around the body
b)
To remove oxygen from the blood
c)
To allow blood to flow through it
d)
To breath
45.
Veins carry oxygen poor blood back to the heart.
a)
False
b)
True
46.
What do red blood cells do?
a)
Carry oxygen
b)
Fight infection and disease
c)
Produce carbon dioxide
47.
This type of vessel carries blood TO the heart:
a)
vein
b)
nerve
c)
muscle
d)
artery
48.
When oxygen-rich blood is carried AWAY from the heart, it travels through an...
a)
artery
b)
neuron
c)
vein
d)
straw
49.
The smallest type of blood vessel is the:
a)
nerve
b)
vein
c)
capillary
d)
artery
50.
Veins have special ________________ to stop blood from flowing backward.
a)
gravity
b)
valves
c)
arteries
d)
ventricles
51.
The cells in the blood that help fight germs and illnesses are the...
a)
red blood cells
b)
platelets
c)
white blood cells
d)
axons
52.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
53.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat.
a)
respiratory
b)
digestive
c)
skeletal
d)
nervous
54.
Name this part.
a)
Right atrium
b)
Left ventricle
c)
Right ventricle
d)
Left atrium
55.
Name this part.
a)
Left ventricle
b)
Pulmonary artery
c)
Right atrium
d)
Pulmonary veins
56.
Name this part.
a)
Right ventricle
b)
Pulmonary artery
c)
Left ventricle
d)
Right atrium
57.
Which side of the heart pumps oxygen-rich blood to the rest of the body?
a)
Right
b)
Left
58.
Which side of the heart pumps blood into the lungs?
a)
Right
b)
Left
59.
______ carry blood to the heart.
a)
Arteries
b)
Veins
c)
Capillaries
d)
Vena Cava
60.
_____ carries blood away from the heart.
a)
Blood cells
b)
Veins
c)
Capillaries
d)
Arteries
61.
What is #3?
a)
Superior Vena Cava
b)
Right Pulmonary Vein
c)
Right Ventricle
d)
Right Atrium
62.
Oxygen-poor blood flows into what atrium?
a)
Left
b)
Bottom
c)
Right
d)
Top
63.
What is #1?
a)
Aorta
b)
Superior Vena Cava
c)
Tricuspid Valve
d)
Left Atrium
64.
what is the part as labeled num 5
a)
p.valve
b)
aortic valve
c)
L.atrum
d)
R.atrum
65.
what is the part as labeled num 7
a)
R.artum
b)
L.venctical
c)
R.ventrical
d)
L.artum
66.
what is the part as labeled num 13
a)
aorta
b)
aortic valve
c)
polanry valve
67.
what is the part as labeled num 14
a)
L.ventrical
b)
R.ventrical
c)
arota
68.
what is the part as labeled num 1
a)
aorta
b)
lung
c)
hart
69.
Which blood vessels carry blood to the heart?
a)
Aorta
b)
veins
c)
arteries
d)
arterioles
70.
Which blood vessels carry blood away from the heart?
a)
capillaries
b)
veins
c)
arteries
71.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
72.
How many chambers does the heart have ?
a)
4
b)
6
c)
3
d)
1
73.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
74.
What are the colored structures?
a)
Arteries
b)
Veins
c)
Valves
d)
Chambers
100 %
