Q&A 1
What is the main job of the circulatory system?
To pump blood around your body.
Which blood vessels carry blood back to the heart?
veins
What type of waste is removed from the body by the circulatory system?
Carbon dioxide.
Which part of the circulatory system is the heart?
A pump that pushes blood.
What is the job of the capillaries?
To carry oxygen to the cell, To connect arteries and veins, To pump the blood
What happens if the heart stops beating?
The circulatory system stops working, and the body won't get the oxygen and nutrients it needs.
What are the two main types of blood vessels?
Arteries and veins.
What is the job of the heart valves?
to control the flow of blood within the heart and out to the body
Where does the circulatory system exchange oxygen and carbon dioxide?
In the lungs.
Which blood vessels carry blood away from the heart?
Arteries.
What do veins do?
They carry blood back to the heart.
What is the function of red blood cells?
To carry oxygen.
What is hypertension?
Hypertension, or high blood pressure, is when the force of blood pushing against the artery walls is too high.
Where does the circulatory system deliver nutrients to?
To all the cells in the body.
What do arteries do?
They carry blood away from the heart.