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Circluatory and Respiratory System

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

2.

Arteries carry blood with oxygen away from the heart.

a)

True

b)

False

3.

Veins carry blood with carbon dioxide back to the heart.

a)

False

b)

True

4.

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.

5.
EXHALE!!!
My lungs are __________________ air. 
a)
taking in
b)
letting out
6.

What are the main organs of the respiratory system?

a)

diapragm

b)

lungs

c)

trachea

d)

bronchi

7.

When you breathe, your lungs take in ___ and remove ___.

a)

carbon dioxide/ oxygen

b)

oxygen/carbon dioxide

8.

Gas that we breathe out

a)

Carbon dioxide

b)

Oxygen

c)

Helium

9.

Gas we breathe in

a)

Carbon dioxide

b)

Oxygen

c)

Helium

10.
The respiratory system is the body system in which _______ exchange takes place.
a)
blood
b)
gas
c)
nutrients
d)
waste
11.
Which is the correct pathway that blood takes as it leaves the heart, circulates throughout the body, and returns to the heart?
a)
arterioles, arteries, venules, veins, capillaries
b)
veins, venules, capillaries, arteries, arterioles
c)
arterioles, arteries, capillaries, veins, venules
d)
arteries, arterioles, capillaries, venules, veins
12.
Which is the correct pathway of air into the respiratory system?
a)
nose and mouth, pharynx, trachea, bronchi, bronchioles, alveoli
b)
nose and mouth, bronchi, trachea, pharynx, bronchioles, alveoli
c)
alveoli, bronchioles, bronchi, trachea, pharynx, nose and mouth
d)
pharynx, nose and mouth, bronchioles, bronchi, trachea, alveoli
13.
The diaphragm is a dome-shaped muscle at the base of the rib cage.
a)
False
b)
True
14.

The heart is a type of _________________.

a)

bone

b)

cell

c)

system

d)

muscle

15.

Oxygen is carried through our body in our ______________.

a)

intestines

b)

blood

c)

muscles

d)

bones

16.

What are prevention tips to keep your heart healthy?

a)

exercise daily

b)

watch your weght

c)

low salt intake

d)

all of the above

17.

Our windpipe is known as the ____________.

a)

esophagus

b)

trachea

c)

layrnx

d)

lungs

18.
Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 
a)
1,2,3,4
b)
2,3,1,4
c)
2,1,3,4
d)
4,2,3,1 
19.

The drawing in of breath; inhalation.

a)

Inspiration

b)

Expiration

20.

Breathing out; exhalation of breath.

a)

Inspiration

b)

Expiration