Question

Value of cardiac output is
(a) Auricular volume $*$ Ventricular volume
(b) Stroke volume * Rate of heart beat
(c) Blood pumped in one minute
(d) Both (b) and (c)

Answer 1

Hint: This value is the product of the volume of blood pushed out from the left ventricle and the number of times our heart beats and also the amount of blood pumped in one minute.

Correct answer:
The value of cardiac output (CO) is equal to the stroke volume (SV) multiplied to the rate of heart beat of blood pumped in one minute. -During a heat beat, the volume of blood ejected out by the left ventricle is the volume of stroke or stroke volume.
-The cardiac output is the volume of blood ejected out by the left ventricle per minute and is measured in terms of liters per minute. -For cardiac output the normal range is about 4 to 8 L/min.
-The cardiac output is the mechanism through which the blood flows around the body, especially to the brain and other vital organs.
-For nourishment every tissue in the body relies on the heart pumping blood.
-Our body needs three to four times more cardiac output during exercise because when the body get exerted due to exercise it needs more oxygen.
-The ventricular volume is the amount of blood present in the ventricles just before systole.
-An increase in ventricular volume increases the amount of blood ejected from the ventricle during systole.

So, the correct answer is,'Both (b) and (c)'

Note:
-For the proper functioning of the body the heart has to maintain an adequate and continuous supply of oxygen and other nutrients to the brain and other vital organs.
-The cardiac output predicts oxygen delivery to cells.
-Maintaining cardiac output is very important because it helps to keep blood pressure at the levels needed to supply oxygen-rich blood to your brain and other vital organs.