Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70ml. Now, to get the cardiac output, we have to multiply (i) with the normal heart rate of (ii) /min and we get (iii) ml/min. This means that in one minute, each ventricle of a normal heart pumps about (iv) litres of blood out.

(i) Stroke volume, (ii) 72, (iii) 5,040, (iv) 5

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(i) Total volume, (ii) 82, (iii)8,200, (iv) 8

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(i) Volume of the heart, (ii) 72,(iii)3,720, (iv) 3

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(i) Volume of the ventricles,(ii) 72, (iii)2,600,(iv) 2

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Solution

The correct option is A
(i) Stroke volume, (ii) 72, (iii) 5,040, (iv) 5

Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70 ml. Cardiac output is the volume of blood pumped out by each ventricle per minute. Now to get cardiac output, we have to multiply stroke volume with the normal heart rate of 72 beats/min and we get 5,040 ml/min. This means that in one minute, each ventricle of a normal heart pumps about 5 litres of blood.

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Similar questions

Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70 ml. Now, to get the cardiac output, we have to multiply (i)__ with the normal heart rate of (ii)__ beats/min and we get (iii)__ ml/min. This means that in one minute, a normal heart pumps about (iv)__ litres of blood out.

Q. (i) During a cardiac cycle each ventricle pumps out approximately

70

mL of blood which is called the stroke volume.
(ii) The cardiac output of an athlete will be much higher than that of an ordinary man.
(iii) The body has no the ability to alter the stroke volume and the cardiac output.
(iv) The cardiac output can be defined as the volume of blood pumped out by each ventricle per minute.
(v) Volume of blood pumped by left ventricle is higher than blood pumped by right ventricle.
How many statements are correct?

Q. Read the following statements:
(i) During a cardiac cycle, both ventricles pump out approximately

70 ml

of blood called stroke volume.
(ii) Cardiac output can be defined as volume of blood pumped out by both ventricle per minute.
(iii) Cardiac output of an athlete will be higher than that of an ordinary man.
(iv) During each cardiac cycle two prominent sounds are produced.
How many statements are correct?

Q. Volume of blood each ventricle pumps out/ stroke volume during a cardiac cycle is about

Q. Choose the correct option.
(i) Human heart is ectodermal in origin.
(ii) Mitral valve guards the opening between right atrium and left ventricle.
(iii) SAN is located on the left upper corner of right atrium.
(iv) Stroke volume

\times

Heart rate = Cardiac output.

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