Question

9. One contraction and one relaxation of heart is
B) Systole C) Cardiac cycle
A) Diastole
D) Circulation
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Answer 1

Answer:

Cardiac cycle

Explanation:

One contraction and one relaxation of heart is Cardiac cycle.

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Answer 2

C) Cardiac cycle

One contraction and one relaxation of heart is cardiac cycle

Explanation:

- Systole is a phase of cardiac cycle where a contraction of the ventricles of the heart take place and that contraction occurs between the first and second heart sounds of the cardiac cycle.

Note :- Systole and systolic pressure are whole different things Because systolic pressure means maximum pressure your heart exerts while beating

- Diastole is a phase of cardiac cycle in which heart is in a state of relaxation and dilatation (expansion) and it is the time when the ventricles fill with blood.

Note :- Diastole and diastolic are whole different things because diastolic pressure is the amount of pressure in your arteries between beats

- Circulation is Type of transportation which helps to transport oxygen and other Minerals through blood. and there are of three types of circulation found within humans. Systemic circulation, pulmonary circulation and portal circulation.