Where is the location of the heart?
Behind the sternum, left of the centre.
What is the heart the size of?
An adult clenched fist
What is the heart wall called?
myocardium/septum
How many chambers does the heart have?
4
What are the two lower chambers?
Ventricles
Heart valves what are they for
prevent backflow
Name the four main blood vessels
Vena cava, pulmonary artery, pulmonary vein, aorta
Which blood vessel takes deoxygenated blood away from the heart to the lungs?
Pulmonary artery
Systematic circulation and ?? circulation( to the lungs)
Pulmonary
What is the blood pressure in veins? high or low
Low
Where does diffusion take place?
Capillaries
What does the Vena Cava do?
Returns deoxygenated blood from the body to the right atrium.
Why does the left ventricle have a thicker wall?
To enable it to pump blood to the body via the aorta.
Where do arteries take the blood?
Away from the heart.
'The amount of pressure that is exerted on the artery walls as the blood moves through them' is defined as what?
Blood pressure
what are the components of blood
red blood cells, white blood cells and platelets
