two large veins that enter the heart
venae cavae
A blood clot on your skin
scab
Our bodies need one full day of ________ each week.
rest
#1
aorta
The largest artery in the body
aorta
The part of your blood that carries digested food
plasma
The flow of blood throughout the body is called ____________
circulation
#3
Pulmonary artery
a lower chamber of the heart
ventricle
Antibodies help fight
pathogens or germs
An enlarged, painful vein is called a ____________
varicose vein
#5
left atrium
an upper chamber of the heart
atrium
Which kind of blood cells fight off infection
white
Another name for the heart is the ________
cardiac muscle
#7 
left ventricle
little doorlike flaps
valves
How many quarts of blood does a child have?
3 quarts
The pressure of blood against the arteries is called __________
blood pressure
#8
Lower vena cava
supplies blood to the lungs
pulmonary artery
The liquid part of your blood
plasma
Bood travels through _____ miles of pipeline in our bodies
60,000
#2
right atrium
Carry blood to your heart
Veins
Help the clotting of the blood
platelets
The expanding of arteries after each heartbeat is called a ____________
pulse
#6
upper vena cava
The smallest blood vessels
capillaries
Iron gives red blood cells their ___________
color
Two things that will help keep the heart healthy are _______ and ___________
exercise and rest
#4
right ventricle