ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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your thumb
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your fist
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your ribcage
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your kitchen table
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Detailed explanation-1: -If you’re a kid, your heart is about the same size as your fist, and if you’re an adult, it’s about the same size as two fists. Your heart beats about 100, 000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times.
Detailed explanation-2: -Each kidney is roughly the size of a small fist. Your kidneys are located at the bottom of your rib cage, one on each side of your spine.
Detailed explanation-3: -Your heart is about the size of a clenched fist, and weighs between 300 and 450 g. It lies in the middle of your chest, behind and slightly to the left of your breastbone.
Detailed explanation-4: -According to Gray’s Anatomy, the heart length, width, and thickness are 12 cm, 8.5 cm, and 6 cm, respectively. In addition, the mean weight of the heart is 280-340 g in males and 230-280 g in females.