Question

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Choose the correct match w.rt events in cardiac cycle
of normal adult person.
Ventricular diastole : 0.4 seconds
>
Atrial diastole : 0.7 seconds
<
Atrial systole : 0.3 seconds
Joint diastole : 0.5 seconds​

Answer 1

0.5 sec is ans....... okk follow me

Answer 2

Answer:

The repeating pattern of contraction and relaxation of the heart is called the cardiac cycle. Diastole is the phase of relaxation and systole is the phase of contraction.

Explanation:

• To begin with, the cardiac cycle, let us start when all the four chambers of the heart(left and right ventricle and atria) are in relaxed state i.e, they are in joint diastole(ventricular diastole and atrial diastole). The time duration is 0.4 s.
• The action potential generated by SAN stimulates both the atria to undergo contraction simultaneously, called atrial systole. The time duration is 0.1 s.
• The action potential is conducted through AVN and AV bundles, causing contraction of the ventricular muscles known as ventricular systole. The time duration is 0.3 s.

So, the correct answer is Ventricular diastole: 0.4 seconds.