SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is a physiological phenomenon
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The left ventricle is toward the left side
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Air is passed only through the left side of the heart
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The heart is on the left side
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Detailed explanation-1: -The heart’s left ventricle has to be bigger as it pumps oxygen rich blood round the whole body, meaning the heart is skewed to the left. The heart is located fairly centrally beneath the breastbone, but it does protrude towards the left.
Detailed explanation-2: -Your heartbeat is the contraction of your heart to pump blood to your lungs and the rest of your body.
Detailed explanation-3: -For your heart to keep pumping regularly, it needs electrical signals which are sent to the heart muscle telling it when to contract and relax. The electrical signal starts in the right atrium where your heart’s natural pacemaker-the sino–atrial node-is situated. This signal crosses the atria, making them contract.
Detailed explanation-4: -Lying on your left side can stimulate the vagus nerve, sending abnormal electrical signals to the heart causing palpitations. It is a harmless reaction and if it worries you, change position or avoid lying on your left side.