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Worksheets

Circulatory & Respiratory System

Total questions: 32

Worksheet time: 25mins

Name
Class
Date
1.

What portion of your blood will be responsible for get rid of a bacterial infection?

a)

white blood cells

b)

red blood cells

c)

platelets

d)

plasma

2.

Carry mostly oxygen-rich blood away from heart

a)

Arteries

b)

Veins

c)

Capillaries

3.

Which of these definitions is the BEST description of what the circulatory system's function is?

a)

The system fights disease so the body stays healthy.

b)

Circulates blood through the body to deliver oxygen and nutrients to body cells

c)

Breaks down food into a simpler form so they can be absorbed by the body

d)

Provides shape and structure for the body.

4.
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
5.

What part of blood has the vital responsibility of delivering oxygen to body cells?

a)

Platelets

b)

Capillaries

c)

Plasma

d)

Red Blood Cells

6.

What portion of the blood is liquid and composed of mostly water?

a)

plasma

b)

lymph

c)

urea

d)

bile

7.

Capillaries are the blood vessels that

a)

connect arteries with veins and facilitate the exchange of carbon dioxide for oxygen.

b)

carry blood away from the heart.

c)

carry blood toward the heart.

8.

If you fall of your bike and skin your knee, what part of the blood help form the scab to stop the bleeding?

a)

red blood cells

b)

white blood cells

c)

platelets

d)

plasma

9.

Which of the following represents the correct path of blood into, through, and out of the heart?

a)

left atrium, left ventricle, lungs, right atrium, right ventricle, the body

b)

right atrium, right ventricle, lungs, left atrium, left ventricle, the body

c)

left atrium, left ventricle, right atrium, right ventricle, lungs, the body

d)

right atrium, lungs, right ventricle, left atrium, the body, left ventricle

10.

Veins carry mostly deoxygenated blood:

a)

away from the heart

b)

towards the heart

11.

Which of these correctly describes what the respiratory system does?

a)

brings oxygen into the body; expels carbon dioxide from the body

b)

bring carbon dioxide into the body for body cells

c)

to deliver oxygen to our body's cells

d)

removes oxygen from the body and brings carbon dioxide in

12.

The pair of organs that are responsible for the exchange of oxygen for carbon dioxide are the

a)

bronchioles

b)

lungs

c)

trachea

d)

bronchi

13.
What is the function of the bronchi?
a)
Transport air from nose to lungs
b)
Transport air from trachea to lungs
c)
Transport air from lungs to alveoli
d)
Transport air from alveoli to blood
14.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
15.
Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 
a)
trachea 
b)
bronchi 
c)
alveoli
d)
diaphragm
16.

The correct passage of oxygen through the respiratory system is

a)

trachea, bronchus, bronchioles, alveolus

b)

trachea, bronchioles, bronchus, alveolus

c)

trachea, bronchus, alveolus, bronchioles

d)

trachea, gullet, bronchioles, bronchi

17.

The large number of alveoli provide __________________ for gas exchange.

a)

low pressure

b)

high pressure

c)

a large volume

d)

a large surface area

18.

The oxygen in the alveoli is picked up by

a)

red blood cells

b)

white blood cell

c)

blood

d)

platelets

19.

Which of the following is NOT a function of the respiratory system?

a)

Distributes carbon dioxide to cells

b)

Distributes oxygen to cells

c)

Filters air

d)

Warms air

20.
What is your blood composed of?
a)
white and red blood cells
b)
plasma
c)
platelets
d)
all of the above
21.

What is G pointing to in this diagram?

a)

trachea

b)

bronchus

c)

bronchiole

d)

alveoli

22.

What is D pointing to in this diagram?

a)

alveoli

b)

trachea

c)

bronchus (plural- bronchi)

d)

bronchiole

23.

What is B pointing to in this diagram?

a)

bronchus

b)

bronchiole

c)

alveoli

d)

pharynx

24.

What is A pointing to in this diagram?

a)

mouth

b)

nasal cavity

c)

alveoli

d)

trachea

25.

What organ is highlighted in red in this picture?

a)

lungs

b)

diaphragm

c)

trachea

d)

bronchioles

26.

What part of the heart is A pointing to?

a)

right atrium

b)

right ventricle

c)

aorta

d)

pulmonary artery

27.

What part of the heart is B pointing to?

a)

left atrium

b)

left ventricle

c)

right atrium

d)

right ventricle

28.

What part of the heart is C pointing to?

a)

left atrium

b)

left ventricle

c)

right atrium

d)

right ventricle

29.

What part of the heart is D pointing to?

a)

left atrium

b)

left ventricle

c)

right atrium

d)

right ventricle

30.

What part of the heart is E pointing to?

a)

left atrium

b)

left ventricle

c)

right atrium

d)

right ventricle

31.

What is F pointing to in this diagram?

a)

trachea

b)

bronchus

c)

bronchiole

d)

alveoli

32.

What is E pointing to in this diagram?

a)

trachea

b)

diaphragm

c)

lung

d)

alveoli