Respiratory & Circulatory Systems Quiz

SELECT ALL THAT ARE CORRECT

The human body is made up of about 100 trillion cells.

Cells need _______​ to survive and function for our body.

• water
• oxygen
• food

  (nutrients)

• blood

• arteries

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The main functions (jobs) of the circulatory system are _______.

SELECT ALL THAT ARE CORRECT 

• deliver nutrients to cells

• carries waste away from cells

• helps regulate body temperature

• helps the body move

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

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The job of the heart is to . . .

• pump blood through your body.

• send food to the small intestines.

• break down food.

• give energy to the body.

About how big is the human heart?

• the size of your nose

• the size of your foot

• the size of your fist

• the size of your ear

Your heart is an example of which type of muscle?

• a big one
• voluntary
• involuntary
• bicep

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

• veins

• heart

• stomach

• arteries

How many chambers does the heart have?

• 4

• 10

• 3

• 1

The circulatory system works with the ___________

system to give our body oxygen.

• respiratory

• digestive

• muscular

• skeletal

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Which chamber pumps

blood to the lungs?

(HINT: think of the 4 chambers of the heart - green arrows - and the direction that the blood flows to get oxygenated.)