Blood
What do red blood cells do?
Red blood cells contain hemoglobin that takes oxygen from your lungs and transports it to the rest of your body
Where does the double loop system go through
heart - lungs - heart - through the body - heart
What do blood vessels do?
Transport blood throughout the body
What is a heartbeat
The pumping of blood in the heart.
What carries nutrients and oxygen throughout the body
Blood
What do white blood cells do?
white blood cells defend your body from germs and infections.
What are valves?
Valves in the heart are little flaps that let blood in and out of a ventricle.
what are capillaries
Cappilaries are vessles in which substances get exchanged
What is blood pressure
The force with which ventricles contract.
Which bloodcells transport blood throughout the body?
Red blood cellss
what do platelets do?
Platelets clump together to create clots - which can help slow the blood flow from a cut.
Can valves prevent a backflow of blood?
What is the difference between ventricles and arteries
Arteries take blood away from the heart and ventricles take blood to the heart
What can happen if your blood pressure is too high??
Your veins and arteries could burst
How do materials and oxygen move through capillaries?
Through diffusion
what does plasma do?
Plasma carries nutrients and proteins throughout the body.
What is stenosis and regurgitation?
Stenosis - Valves stiffen and wont work as well
Regurgitation - Valves may leak
What do coronary arteries do?
Deliver blood to capilaries
What could happen if your blood pressure is too low
Your blood won't be pumped to your head as well and your body won't get enough oxygen.
what component of blood carries nutrients and proteins?
Plasma
Maintaining a constant pH level, temprature and osmatic pressure.
What is a common heart disease?
Coronary heart disease
what do coronary veins do?
Take deoxygenated blood to the right atrium.
does your heart have to work harder or less hard when your standing up?
Harder
what is a waste product exchanged for oxygen?
Carbon Dioxide.