NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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brain
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liver
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biceps
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heart
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Detailed explanation-1: -The hardest working muscle is the heart. It pumps out 2 ounces (71 grams) of blood at every heartbeat. Daily the heart pumps at least 2, 500 gallons (9, 450 liters) of blood. The heart has the ability to beat over 3 billion times in a person’s life.
Detailed explanation-2: -The muscle layer of the heart is termed the myocardium and is made up of cardiomyocytes. The myocardium is found in the walls of all four chambers of the heart, though it is thicker in the ventricles and thinner in the atria.
Detailed explanation-3: -The muscles of the eye are your most active muscles, constantly moving to readjust the position of your eyes. Not only do you blink 15 to 20 times a minute on average, but as your head moves, the eye muscles are constantly adjusting the position of the eye to maintain a steady point of fixation point.