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प्रश्न
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
Which part of the heart is contracting in this phase? Give a reason to support your answer.
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उत्तर
Ventricular muscles are contracting during this phase because the valves between the two ventricles and pulmonary artery and aorta are open while the atrio-ventricular valves are closed.
संबंधित प्रश्न
Name of the valve between the left atrium and left ventricle and give its significance.
Fill in the blank.
In human body, heart is located on the _____ side of the chest cavity.
Multiple Choice Questions
The beating of the heart of man is heart on the left side, because:
The normal human heartbeat rate is about ______ time per minute.
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For which of the following reason the SA node acts as the normal pacemaker?
Assertion: Human heart does not allow the mixing of oxygen to reach blood with carbon dioxide to reach the blood.
Reason: Human heart has different chambers.
Give the location of Pericardial fluid.
Draw the neat Labelled diagram of the internal structure of the human heart.
A man's heart rate is 68 and cardiac output is 5440. Find the stroke volume.
