BLOOD
HEART
BLOOD VESSELS
LUNGS
THE CIRCULATORY SYSTEM
100

What are the "roads", along which our blood flows?

blood vessels

100
How many parts does the heart have?
Four
100
Tubes that carry blood throughout the body are
Blood vessels
100

What kind of blood enters the lungs from the heart?

Deoxygenated blood

100

Which blood vessels in your circulatory system have thick walls?

Arteries

200
What is the function of blood in our body?
Carry nutrients and oxygen to our body cells
200

What does the heart do?

Pumps blood through your body

200
Blood vessels that carry blood away from the heart
Arteries
200

What kind of blood exits the lungs?

Oxygenated blood

200
Once oxygen-rich blood exits the heart, where does it go next?
To your body tissues and cells
300

There are 2 kinds of blood. What are they and what do they mean?

Oxygen-rich blood - rich in oxygen Oxygen-poor blood - poor in orxygen

300
Name two spots in which you can feel your pulse
What is your neck, crook of arm, behind knee, wrist, thumb
300
Blood vessels that carry blood to the heart
Veins
300
What happens to the blood in the lungs?
Refills with oxygen
300
Why is the circulatory system a good name for your blood vessels, blood, and heart?
Because the blood "circulates" around your body in the blood vessels.
400
How often does your blood flow through your body?
All the time
400

During and after exercise, your heart rate increases or decreases

increases

400
Smallest type of blood vessel that connect arteries and veins
Capillaries
400
How does the oxygen get to our blood inside the lungs?
Through the capillaries in the alveoli
400
What is the most important organ of the circulatory system?
Heart
500
The liquid part of blood that carries chemicals and nutrients
Plasma
500
How many times does blood enter our heart?
2 times
500
Does blood flow through the vessels in one direction or in both directions?
One direction
500
How many times does blood enter our lungs?
One time
500
How many organs are part of our circulatory system?
2 - lungs and heart
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