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Which of the chambers has the highest pressure?
Which blood vessel carries the deoxygenated blood to the right atrium?
All of them
Which blood vessels carries oxygenated blood from the heart to the whole body?
What happen when the ventricles of the heart contract?
The semilunar valve close
The semilunar valve open
The atrioventricular valve open
Which valve action results from an increase in pressure in the atrial of the heart?
The opening of the semilunar valve
The closing of the atrioventricular valve
The opening of the atrioventricular valve
Where does the sino-atrial node, which generates the electrical impulses that coordinate heart-muscle contracted is located in?
Right atrium and ventricle are separated from the left atrium and ventricle by______________
Where do aorta pump oxygenated blood?
What is the function of SA node?
Spread impulse to both atrium
Generate electrical impulse
Spread impulse to AV node
How long does impulse delayed at AV node