WorksheetsCirculatory System
Total questions: 23
Worksheet time: 30mins
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 heart is about the size and shape of your . . .
a)
head
b)
fist
c)
hand
d)
foot
6.
How does the heart work?
a)
It pumps blood first to the lungs, back to the heart and then around the rest of the body.
b)
It pumps blood first to the rest of the body, back to the lungs and then to the heart.
c)
It pumps blood around the rest of the body, back to the heart and then to the lungs,
7.
______________ are the second largest blood vessel.
a)
Arteries
b)
Veins
c)
Capillaries
8.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
9.
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
10.
These cells, in the blood, carry oxygen and give the blood its color.
a)
white blood cells
b)
plasma
c)
platelets
d)
red blood cells
11.
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
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.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
16.
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
17.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
18.
Which is NOT a function of the circulatory system?
a)
deliver O2 and nutrients to cells
b)
remove CO2 and wastes from cells
c)
break down carbohydrates into glucose
d)
transport other materials through body
19.
What is the circulatory system?
a)
The body's breathing system
b)
The body's system of nerves
c)
The body's food-processing system
d)
The body's blood-transporting system
20.
What would happen to people who have an open wound and whose blood did not clot naturally?
a)
They may bleed to death.
b)
Nothing. Clotting is not important.
c)
They would have to take regular doses of plasma.
d)
They would have to take regular doses of platelets.
21.
What are the components of blood?
a)
Plasma, Red blood, cells, white blood cells, and platelets.
b)
Oxygen and nutrients.
c)
Minerals
d)
Water
22.
Which of the following is not a type of blood vessel.
a)
arteries
b)
veins
c)
capillaries
d)
lymph nodes
23.
These two blood vessels deliver deoxygenated blood to the right atrium
a)
pulmonary veins
b)
pulmonary arteries
c)
superior and inferior vena cava
d)
tricuspid and bicuspid
100 %
