RE-NEET Zoology Body Fluids and Circulation Class 11 Questions
5 questions
The number of action potentials generated by sino-arterial node (SAN) in a healthy human is _______ per minute.
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Which of the following statements is incorrect ?
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The opening between the right atrium and the right ventricle is guarded by ________.
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A person with blood group ARh⁻ can receive the blood transfusion from which of the following types?
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‘Lub’ sound of Heart is caused by the
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