the cardiac event that completes ventricular filling is referred to as

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1. Remigijus Bilgin

   1 ay önce

   The actual event that completes the filling is called atrial systole. Most of the blood (like 70-80%) actually flows passively into the ventricles before the atria even contract, just because the ventricles are relaxing and the valves are open. But to get that last little bit, the atria squeeze shut, which is the atrial systole phase. You’ll also hear people call that final push the atrial kick. That “kick” is what tops off the ventricles, making sure they’re completely full before they contract, and that final maximum volume is called the end-diastolic volume (EDV). If you lose that atrial kick, like if you have atrial fibrillation, you can lose up to 30% of your cardiac output, especially if your heart is already a little stiff. It’s a small phase but really important for performance.

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2. Maija-Sisko Gelişen

   1 ay önce

   The best and most descriptive term is the atrial kick. My professor hammered that one into us because it highlights the mechanical action. It’s a forceful little burst of blood from the atria, which is the last step before the AV valves close and the big ventricular pump starts. It’s responsible for a decent amount of the total volume, especially when your heart rate is high and there’s less time for the passive filling to happen. So, yeah, atrial kick or atrial systole are both correct, but ‘kick’ is the one everyone actually says.

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3. Lauren Çırak

   1 ay önce

   You want atrial contraction, which is also known as atrial systole. The P wave on an ECG is the electrical signal that makes that happen. That electrical signal spreads, the atria muscle contracts, the pressure inside them goes up for a second, and that forces the rest of the blood through the tricuspid and mitral valves to maximize the volume in the ventricles, setting up the end-diastolic volume. It’s literally the last part of diastole before the valves slam shut and systole starts.

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4. cekik Çırak

   1 ay önce

   It’s atrial systole. That’s the official term for the atria contracting. Filling is mostly diastole, but the very end of diastole is that quick atrial contraction that forces the last bit of blood into the ventricles. It happens right before the ventricles start their big squeeze (ventricular systole). So, passive filling happens first, then the atria contract to finish the job.

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5. rie Gelişen

   1 ay önce

   If you’re looking for the name of the phase, it’s the atrial contraction phase. It’s the grand finale of diastole. All that passive filling happens, and then the atria just give it a little shot of pressure to make sure the ventricles are absolutely maxed out on volume before the big pump starts. If you hear a S4 heart sound, that sometimes happens right during this final push if the ventricle wall is stiff.

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6. uluca Aydın

   1 ay önce

   Technically, it’s the atrial systole. The full ventricular filling phase is split into three parts: the rapid filling phase (the rush), diastasis (the slow flow), and then atrial systole. The systole is the only active contraction phase in that whole process, which is why it gets credit for completing the filling.

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7. Lulita Çırak

   1 ay önce

   I think your teacher is looking for atrial kick. That’s the super common clinical term for it. It just sounds better than “atrial systole” when you’re talking about that final squeeze. It’s what pushes the final 20-30% of blood in there, basically making sure the ventricles are primed and ready for the main event. It’s a surprisingly important part of the whole process.

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8. Rylee Çırak

   1 ay önce

   The cardiac event that completes ventricular filling is referred to as the “atrial kick” or “atrial contraction.” During this phase of the cardiac cycle, the atria contract, forcing the remaining blood into the ventricles just before ventricular systole begins. This additional volume of blood provided by the atrial kick optimizes ventricular filling, ensuring that the ventricles are adequately filled before they contract to pump blood out to the rest of the body.

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