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  • In the given figure the durations of the events of the cardiac cycle are given. Identify these events and select the correct option  <img alt="" src="https://cdn.entrance360.com/medi

In the given figure the durations of the events of the cardiac cycle are given. Identify these events and select the correct option 

Option: 1

A. Auricular systole 

B. Joint diastole 

C. Ventricular systole 


Option: 2

A. Ventricular systole 

B. Joint diastole 

C. Auricular systole 


Option: 3

A. Venticular systole 

B. Auricular systole 

C. Joint diastole 


Option: 4

A . Joint diastole 

B. Auricular systole 

C. Ventricular systole 


Answers (1)

best_answer

Cardiac cycle

  • Cardiac cycle refers to the one cycle of contraction and relaxation of the cardiac muscles or one heartbeat.
  • A heart beat consists of contraction and relaxation of atria and ventricles. 
  • The phase of contraction is referred to as systole while the phase of relaxation is called diastole.
  • The term joint diastole is used when both atria and ventricles are undergoing relaxation or diastole together
  • During joint diastole, the blood is carried from superior and inferior vena cava into the atria and from atria to the ventricles through auriculoventricular valves
  • Blood flow is then restricted from ventricle to aorta and pulmonary trunk

- wherein

The heart beats 72 times per minute, i.e., that many cardiac cycles are performed per minute. From this it could be deduced that the duration of a cardiac cycle is 0.8 seconds. 

 

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Posted by

Pankaj Sanodiya

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