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The opening between the right atrium and right ventricle is guarded by a valve called

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Important Questions on Body Fluids and Circulation

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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 16
Which of the following is known as natural pacemaker of the heart?
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 17
All veins carry deoxygenated blood except
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 18
Oxygenated blood from left ventricle enters the aorta by opening of
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 19
Papillary muscles occur in
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 20
Origin of heart beat and its conduction is represented by -
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 21
Rise in heartbeat, increase in the cardiac output and blood pressure occurs during emergency, by the release of which hormone?
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 22
The decrease in the rate of heartbeat, speed of conduction of action potential, and thereby the cardiac output is under the control of:
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Gamma Question Bank for Medical Biology>Chapter 18 - Body Fluids and Circulation>EXERCISE>Q 23
Human heart is