MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The heart contracts in the following patterns:
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atrium, left atrium, then ventricles
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both atria, then both ventricles
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right atrium, right ventricle, then the left atrium, left ventricle
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ventricles, then atria
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Explanation:
Detailed explanation-1: -Atrial Systole: At this phase, blood cells flow from atrium to ventricle and at this period, atrium contracts. Isovolumic Contraction: At this stage, ventricles begin to contract. The atrioventricular valves, valve, and pulmonary artery valves close, but there won’t be any transformation in volume.
Detailed explanation-2: -As the ventricle begins to contract, the pressure exceeds that of the corresponding atrium, resulting in the closure of the atrioventricular valves. At the same time, the pressure is not sufficient to open the semilunar valves.
There is 1 question to complete.