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Worksheets

Heart to Heart

Total questions: 30

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.

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.

3.

The circulatory system works with the ___________ system to provide our body with oxygen.

a)

respiratory

b)

digestive

c)

muscular

d)

skeletal

4.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
5.

Which of the following is not part of the circulatory system?

a)

veins

b)

heart

c)

stomach

d)

arteries

6.

As the blood reaches the lungs, what is removed from the blood?

a)

oxygen

b)

carbon dioxide

c)

red blood cells

d)

white blood cells

7.
True or false:  The circulatory system includes all of your bones.
a)
True
b)
False
8.
Your heart is an example of which type of muscle?
a)
a big one
b)
voluntary
c)
involuntary
d)
bicep
9.

The part of the blood that carries oxygen is called ___________. (Remember we can't live without our blood-line)

a)

red blood cells

b)

white blood cells

10.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
11.

Arteries are...

a)

blood vessels responsible for carrying oxygen-rich blood away from the heart to the body.

b)

blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

12.

Veins are...

a)

two of the body's main type of blood vessels.

b)

blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

13.

The heart is divided in...

a)

three atriums and two ventricles.

b)

right and left atriums and ventricules.

c)

pulmonary veins and aorts.

14.

Blood vessels that carry blood away from the heart.

a)

Veins

b)

Capillaries

c)

Arteries

15.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
16.

Blood vessels that carry blood to the heart.

a)

Veins

b)

Arteries

c)

Capillaries

17.

The smallest blood vessels that ensure oxygen and nutrients are delivered to the body's cells.

a)

Capillaries

b)

Arteries

c)

Veins

18.

This occurs when blood flow to part of the heart is blocked.

a)

Heart attack

b)

Atherosclerosis

c)

Arrhythmia

19.
Identify the structure the arrow is pointing to
a)
right atrium
b)
right ventricle
c)
left atrium
d)
left ventricle
20.

How many chambers of the heart are there?

a)

25

b)

4

c)

2

d)

3

21.

The system that makes red blood cells.

a)

nervous

b)

circulatory

c)

respiratory

d)

skeletal

22.

The system that sends electrical signals to the heart that tell it to beat.

a)

respiratory

b)

lymphatic

c)

nervous

d)

digestive

23.

About how big is the human heart?

a)

the size of your nose

b)

the size of your foot

c)

the size of your fist

d)

the size of your ear

24.

Choose the 3 TRUE statements about the circulatory system

a)

The circulatory system and the respiratory system work together to deliver oxygen to all of the cells and tissues in the body.

b)

The circulatory system and the respiratory system work together to remove CO2 and other waste products from cells and tissues in the body.

c)

The circulatory system, respiratory system, and excretory system all work together to remove waste products from the body.

d)

The circulatory system is a special system that does not work with other systems of the body.

25.

Your heart rate, or pulse, is the number of times your heart beats per ______.

a)

hour

b)

second

c)

minute

d)

day

26.

To carry something from one place to another

a)

Stop

b)

Cell

c)

Pause

d)
Transport
27.

How do the respiratory and circulatory systems work together to maintain homeostasis?

a)

The respiratory system supplies oxygen to the circulatory system, which then delivers it to the body.

b)

The circulatory system provides carbon dioxide to the respiratory system for oxygenation.

c)

The respiratory system cools the blood, while the circulatory system warms the air.

d)

The circulatory system filters the air, while the respiratory system pumps blood.

28.

What TINY blood vessels are throughout the body and are so small the blood can only travel through these tubes in a single file line?

a)

capillaries

b)

veins

c)

phloem

d)

atrium

29.

Which carries oxygen-rich blood away from the heart?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Marrow

30.

Which carries oxygen-poor blood back to the heart?

a)

Arteries

b)

Veins

c)

Capillaries

d)

Platelets