The Cardiac Cycle

Question 1

The cardiac cycle is

Answer 1

is the series of events that take place in one heart beat, including muscle contraction and relaxation
The contraction of the heart is called systole, while the relaxation of the heart is called diastole

Question 2

The contraction of the heart is called

Answer 2

systole

Question 3

while the relaxation of the heart is called

Answer 3

diastole

Question 4

One cardiac cycle is followed by ……………in a continuous process
There is no gap between cycles where blood stops flowing

Answer 4

another

Question 5

Contraction of the heart muscle causes a

thinkvolume

Answer 5

decrease in volume in the corresponding chamber of the heart

which then increases again when the muscle relaxes

Question 6

Volume changes lead to corresponding pressure changes

When volume decreases…………….

when volume increases

Answer 6

pressure increases

pressure decreases

Question 7

Throughout the cardiac cycle, heart valves open and close as a result of

Answer 7

pressure changes in different regions of the heart

Question 8

Valves open when

Answer 8

the pressure of blood behind them is greater than the pressure in front of them

Question 9

valves They close when

Answer 9

the pressure of blood in front of them is greater than the pressure behind them