Cardiovascular System- Science Quiz- Grade 6

What make up the cardiovascular system?

Answer explanation

Blood vessels, Blood and the Heart

Is the heart an organ?

• Yes

• No

What is the heart mostly made of?

Is your heart the size of your.....?

• Palm

• Fist

• Nose

• Head

• Toe

The heart pumps blood through?...

A blood vessel that carries blood away from the heart is a....

• Artery

• Capillary

• Vein

What is a capillary?

Answer explanation

The capillary is a tiny blood vessel that allows exchange between body cells and blood.

What are veins?

Answer explanation

The vein is a blood vessel that carries blood back to the heart.

What are arteries

Answer explanation

A blood vessel that carries blood away from the heart.

How does a heart attack occur?

Answer explanation

A heart attack occurs when heart muscle cells do not get enough blood.