MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5, 1, 2, 3, 4, 6
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2, 1, 5, 3, 4, 6
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5, 6, 2, 3, 4, 1
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2, 6, 5, 3, 4, 1
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Detailed explanation-1: -The SA node (physiologicalpacemaker) starts the sequence by generating an electrical impulse, causing the atrial muscles to contract. From there, the signal travels to the AV node, then through the bundle of His, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract.
Detailed explanation-2: -The SA (sinoatrial) node generates an electrical signal that causes the upper heart chambers (atria) to contract. The signal then passes through the AV (atrioventricular) node to the lower heart chambers (ventricles), causing them to contract, or pump.
Detailed explanation-3: -Sinoatrial node. Atrioventricular node. Bundle of His (atrioventricular bundle). Purkinje fibers. 23-Jul-2021