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Which of the following events do not occur during joint diastole?

I. All four-chamber are in relaxed state

II. Tricuspid and bicuspid are open

III. Semilunar valves are closed

IV. Blood from the pulmonary veins and vena cava flows into the left and right ventricles, respectively through the left and right atria

The correct option containing correct choice is

a)

Only I

b)

Only III

c)

II and IV

d)

None of these



Question ID - 3525 | SaraNextGen Top Answer

Which of the following events do not occur during joint diastole?

I. All four-chamber are in relaxed state

II. Tricuspid and bicuspid are open

III. Semilunar valves are closed

IV. Blood from the pulmonary veins and vena cava flows into the left and right ventricles, respectively through the left and right atria

The correct option containing correct choice is

a)

Only I

b)

Only III

c)

II and IV

d)

None of these

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

In the cardiac cycle, the first stage begins with the joint diastole. In that, four chambers of the heart are in relaxed state. As the tricuspid and bicuspid valves are open, blood from the pulmonary veins and vena cava flows into the left and right ventricle respectively, through the left and right atria. The semilunar valves are closed at this stage

127 votes


127