The Heart
A big pump that pumps blood around the body
What is the heart?
Biconcave disc without a nucleus
What are red blood cells?
Blood passes through these tubes
What are blood vessels?
I send carbon dioxide out of the body
What is the role of the lungs?
When the muscle of the heart relaxes and blood flows in
What is cardiac diastole?
These protect the body from diseases
What are white blood cells?
These transport blood away from the heart
What are arteries?
If you stretched us out we would circle the earth 2½ times
What are capillaries, arteries and veins?
When blood is forced out of the heart and flows around the body
What is atrial systole?
They clump together to stop bleeding in the veins
What are platelets?
These transport blood to the heart
What are veins?
Red blood cells come to me to collect oxygen and drop off oxygen
What are the lungs?
When blood enters the right atrium through the superior and inferior vena cava
What is atrial diastole?
This substance transports nutrients and hormones around the body
What is plasma?
These allow substances to be passed to other cells
What are capillaries?
This component substances around the body
What is blood?