Heart
Blood Vessels
Blood Components
Functions
100

What is the heart?

The muscular organ that pumps blood throughout the body.

100

What type of blood vessel carries blood away from the heart?

the arteries

100

What type of blood cell is responsible for carrying oxygen?

red blood cells

100

How does the circulatory system help regulate body temperature?

by adjusting blood flow to the skin

200
What is the size of a human heart compared to?

The size of a fist.

200

What are the tiny blood vessels where gas exchange occurs?

capillaries

200

What is the liquid part of blood called?

plasma

200

What is the immune function in the circulatory system?


to transports white blood cells and antibodies to fight infections



300

About how many times does a heart beat a day?

100,000 times 

300

What carries oxygen-poor blood back to the heart.

veins

300

What does the heart pump blood through?

vessels

300

What is the function of the nutrient delivery in the circulatory system?

to carry nutrients from the digestive system to cells.

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