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Earn 100
All of the following can increase the rate of heartbeat, the strength of ventricular contraction and thereby the cardiac output, except
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Important Questions on Body Fluids and Circulation
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If a person goes into cardiac arrest, the ECG shows
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Which of the following is/are observed at the end of joint diastole?
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Identify the conducting cardiac musculature that passes through the interventricular septum.
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The duration between the first and second heart sounds is
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Hole in the interatrial septum to shunt oxygenated blood from right to left atria during foetal life in the heart is called
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Identify the incorrect statement from the following w.r.t. ECG.
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Which of the following statements are wrong?
(i) The heart is protected by a double-walled membranous bag called the pericardium.
(ii) Bundle of His is a tract of conducting fibres that carry impulses from atria to ventricles.
(iii) Impulses generated by SA node stimulates the atria and ventricles to contract simultaneously.
(iv) SA node has an inherent ability to generate nerve impulse at a higher rate compared to the rest of cardiac muscle fibres.
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How many of the following are present in the ventricles of the human heart?
Eustachian valve, Chordae tendineae, Papillary muscles, Coronary sinus.
