Worksheetscirculatory system
Total questions: 21
Worksheet time: 16mins
What does your heart do?
pumps blood through your body
protects your body
makes your body exercise
breathes oxygen in your body
Your heart is about the size of your __________.
mouth
fist
feet
head
What does circulate mean?
pump blood
beat quickly
go around and around
You can feel your heart beating when you feel your _____________.
pulse
breathing
stomach growling
Your heart is a _____________.
tube
muscle
vein
bone
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 circulatory system works with the ___________ system to provide our body with oxygen.
respiratory
digestive
muscular
What is the circulatory system made up of?
Lungs, blood, blood vessels
Liver, kidneys, and stomach
Heart, Blood Vessels, and Blood
The circulatory system works with the __________ system to obtain energy from nutrients that we eat.
respiratory
digestive
skeletal
nervous
Veins carry oxygen-poor blood back to the heart.
False
True
Blood is carried back to your heart in little tubes called ____________.
veins
arteries
hoses
Arteries carry oxygen-rich blood away from the heart.
True
False
What do all living organisms need to survive?
energy
blood
chlorophyll
soil
State the general relationship between exercise and heart rate in humans.
If a person exercises, then their heart rate will not change
If a person exercises, then their heart rate will increase
If a person exercises, then their heart rate will decrease
Exercise and heart rate are not related
