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प्रश्न
WBC defends the body from bacterial and viral infections.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Draw a diagram of the human heart and label its parts.
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the questions that follow:
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- Name the phase.
- Which part of the heart is contracting in this phase? Give a reason to support your answer.
- Name the parts numbered 1to6.
- What type of blood flows through the parts marked 'l' and '2' respectively?
- How many valves are closed in this phase?
Complete the following sentence with appropriate word:
The average heartbeat rate is ____ beats per minute in human being.
Multiple Choice Questions
The beating of the heart of man is heart on the left side, because:
______ is known as pacemaker of heart.
For which of the following reason the left ventricle of human heart has its wall thicker than the right ventricle?
Blood capillaries show the presence of ______
The back flow of blood during the pumping of blood by the heart is prevented by:
In the given figure of the heart which of the marked structures (1, 2, 3, 4, 5) carries oxygenated blood.
Draw a neat diagram of the conducting system of human heart and label AV node, Bundle of His and Purkinje fibres.
