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Worksheets

Circulatory System and Respiratory System

Total questions: 25

Worksheet time: 50mins

Name
Class
Date
1.

What is the function of the Lymphatic System?

a)

Gas exchange

b)

Maintain blood pressure

c)

Filters pathogens from lymph and returns it to the circulatory system

d)

Helps with blood clotting

2.

What blood vessels help bring blood from the heart to the body?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Lymph nodes

3.

What blood vessels are the smallest blood vessels that bring oxygen and nutrients to all the cells in the body?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Lymph nodes

4.

What blood vessels bring blood back to the heart?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Lymph nodes

5.

What is the function of Red Blood Cells?

a)

To carry oxygen and carbon dioxide

b)

To fight infection

c)

To clot blood

d)

To control blood pressure

6.

What is plasma?

a)

The cellular portion of the blood

b)

The liquid portion of the blood

c)

The protein needed for blood clotting

d)

Part of the lymphatic system

7.

The right side of the heart pumps blood to the

a)

Body

b)

Lungs

c)

Left side of the heart

d)

To the coronary arteries

8.

The right side of the heart carries

a)

Oxygen rich blood

b)

Oxygen poor blood

9.

The left side of the heart carries

a)

Oxygen rich blood

b)

Oxygen poor blood

10.

The left side of the heart pumps blood to

a)

The lungs

b)

The body

c)

Lymphatic system

d)

The heart only

11.

How many liters of blood does the body contain?

a)

2-3

b)

6-7

c)

4-6

d)

10-12

12.

What is the function of the white blood cells?

a)

To carry oxygen and carbon dioxide

b)

To help with blood clotting

c)

To fight infections, parasites and bacteria

d)

To filter air

13.

What is atherosclerosis?

a)

High blood pressure

b)

A lung disease

c)

Low blood pressure

d)

Where fatty deposits called plaque builds up on the walls of arteries

14.

What 2 gases are exchanged in the alveoli?

a)

Oxygen and Nitrogen

b)

Oxygen and Carbon Dioxide

c)

Carbon Dioxide and Nitrogen

d)

Carbon Dioxide and Hydrogen

15.

Which is NOT a function of the nose in the respiratory system?

a)

Filters air

b)

Moistens air

c)

Warms air

d)

Transfers oxygen from the air to the blood

16.

Which of the following is the correct order in which air moves through the human respiratory system when a person inhales?

a)

Nose, larynx, trachea, bronchi, alveoli, bronchi

b)

Pharynx, nose, trachea, larynx bronchi, bronchioles, alveoli

c)

Pharynx, bronchi, nose, larynx, trachea, bronchioles, alveoli

d)

Nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli

17.

Which of the following parts of the respiratory system contains the vocal cords?

a)

Pharynx

b)

Larynx

c)

Trachea

d)

Bronchi

18.

What prevents food from entering the lungs?

a)

The pharynx

b)

A flap of tissues called the epiglottis

c)

Cilia

d)

The alveoli

19.

What is the function of the respiratory system?

a)

Gas exchange

b)

Bring air into the lungs

c)

To warm and filter air

d)

To control blood pressure

20.

What would happen if the coronary arteries were blocked?

a)

You could have a stroke

b)

You can have a heart attack

c)

You won't stop bleeding

d)

You can't breathe

21.

During gas exchange Oxygen leaves the capillaries, enters the alveolus, then the bronchioles and is eventually breathed out.

a)

True

b)

False

22.

During gas exchange, oxygen travels into the bronchioles, to the alveoli. The oxygen then diffuses into the capillaries.

a)

True

b)

False

23.

Where does gas exchange occur?

a)

Lungs

b)

Trachea

c)

Bronchioles

d)

Alveoli

24.

Which part of the respiratory system is also called the windpipe?

a)

Larynx

b)

Trachea

c)

Bronchus

d)

Pharynx

25.

What is hemophilia?

a)

A genetic disorder that affects blood clotting

b)

A genetic disorder that affects blood flow

c)

A genetic disorder that leads to sickle shaped blood cells

d)

It is another name for blood clotting