WorksheetsCirculatory & Respiratory System
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
When you breathe, your lungs take in ___ and remove ___.
a)
air/oxygen
b)
oxygen/carbon dioxide
c)
carbon dioxide/waste
d)
waste/air
2.
What are the main organs of the respiratory system?
a)
muscles
b)
lungs
c)
nose and mouth
d)
bronchi
3.
What is the main function of the heart ?
a)
The heart circulates blood and oxygen 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 adds oxygen to the blood
4.
The heart pumps blood to get ________ to our cells.
a)
carbon dioxide
b)
urea
c)
oxygen
5.
What is the main organ in the circulatory system?
a)
vein
b)
lung
c)
heart
d)
aorta
6.
Carry blood away from heart; mostly oxygen-rich
a)
Arteries
b)
Veins
c)
Capillaries
7.
Which is the correct definition of the Circulatory system?
a)
The system fights disease so the body stays healthy.
b)
The system that circulates blood and oxygen through the body, consisting of the heart,blood vessels,and blood.
c)
Breaks down food into smaller pieces and absorbs those nutrients into the body.
d)
Provides shape and structure for the body.
8.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
9.
What function does the heart do?
a)
Protects organs and produces red blood cells.
b)
Generates heat.
c)
Breaks down food into nutrients.
d)
The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.
10.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
11.
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
12.
Veins carry blood with carbon dioxide back to the heart.
a)
False
b)
True
13.
What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?
a)
diapragm
b)
lungs
c)
trachea
14.
Label B is...
a)
Trachea
b)
Diagphragm
c)
Bronchus
d)
Alveolus
15.
2 tubes entering the lungs
a)
pharynx
b)
larynx
c)
bronchial tubes
d)
bronchioles
100 %
