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Worksheets

Circulatory and Respiratory

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

This hollow organ works like a pump, pushing blood through our body

a)

Heart

b)

Lung

c)

Cardia

d)

Brain

2.

When we get a cut, our ____________ in our blood seal the cut.

a)

Red blood cells

b)

White blood cells

c)

Platelets

d)

Plasma

3.

___________ take blood from the heart and send it to the rest of our body

a)

Arteries

b)

Veins

4.

Our blood looks a bright red because it is carrying...

a)

red food coloring

b)

oxygen

c)

Carbon Dioxide (CO2)

d)

Groceries

5.

Also known as our immune system, these cells fight off infections through the bloodstream, and therefore our whole body

a)

Red Blood Cells

b)

White Blood Cells

c)

Platelets

d)

Plasma

6.

Also known as the windpipe, this organ allows oxygen to reach our lungs from our nose/mouth

a)

Trachea

b)

Esophagus

c)

Lung

d)

Brain

7.

Oxygen reaches our bloodstream through the...

a)

Alveoli

b)

Trachea

c)

Esophagus

d)

Stomach

8.

These hollow organs are responsible for inhaling oxygen and exhaling Carbon Dioxide

a)

Heart

b)

Lungs

c)

Brain

d)

Kidney

9.

This muscle helps us breathe by helping to move the lungs

a)

Bicep

b)

Diaphragm

c)

Heart

d)

Inner ear

10.

How well do you feel you understand the Circulatory and Respiratory Systems?

a)

I'm completely lost, but ready to learn!

b)

I understand a few things, but need to know more!

c)

I understand more than I thought, let's expand on that!

d)

I've known this for years!