Font size
WorksheetsCirculatory system
Total questions: 20
Worksheet time: 20mins
Which system allows blood to circulate throughout the body to transport oxygen and nutrients to all the cells and tissues?
Nervous
Respiratory
Circulatory
These cells, in the blood, carry oxygen and give the blood its color.
white blood cells
plasma
platelets
red blood cells
The cells in the blood that help fight germs like bacteria and viruses
red blood cells
platelets
white blood cells
What is the main organ of the circulatory system?
small intestine
bone
lungs
heart
The job of the heart is to . . .
pump blood around the body.
send food to the small intestines.
break down food.
give energy to the body.
What is the circulatory system made up of?
Lungs, blood, blood vessels
Liver, kidneys, and stomach
Heart, Blood Vessels, and Blood
Which of the following does blood help transport throughout the body?
undigested food
Nutrients
Gases (oxygen and carbon dioxide)
hormones like adrenaline
Your heart pumps blood throughout your entire body through little tubes called _____________.
veins
arteries
hoses
Blood is carried back to your heart in little tubes called ____________.
veins
arteries
hoses
What does circulate mean?
pump blood
beat quickly
go around and around
Your heart is a _____________.
tube
muscle
vein
Which is NOT a way to exercise your heart?
Running
Sitting on the couch
Swimming
Which is a good way to keep your heart healthy?
Eating healthy foods
Playing video games
Eating greasy foods
