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What do multiple ectopic sites lead to?
rapid and uncoordinated contractions of the atria or ventricles. This condition is known as fibrillation. When the atrial impulse fails to reach the ventricle, a condition known as heart block results.
When atria relax ventricles do what?
When relaxed, the atria expand, and then the ventricles contract.
What is the medical term meaning rapid unsynchronized contraction of the ventricles?
Ventricular fibrillation is the term for rapid irregular contractions of the ventricles. Because the contractions are unsynchronized and random, the ventricles do not pump effectively. The patient may have no palpable pulse, and the condition can be fatal.
Do atria contract before the ventricles?
Yes, atria contracts before the ventricles.
When blood flows through the heart what force the blood out of the heart and into the arteries?
The atria Actually, it is the contractions (squeezing) of the ventricles (the lower parts of the heart), not the atria (the upper parts), that do the pumping. That's why the lower part of the heart is larger, and the muscular walls are thicker. The atria receive the blood from the body and pump it down into the ventricles.
What difference atria and ventricles fetal pig?
the difference between the ventricles and the atria is that the ventricles are thicker
When blood flows through the heart what forces pushes the blood out of the heart and into the arteries?
The atria Actually, it is the contractions (squeezing) of the ventricles (the lower parts of the heart), not the atria (the upper parts), that do the pumping. That's why the lower part of the heart is larger, and the muscular walls are thicker. The atria receive the blood from the body and pump it down into the ventricles.
When blood flows through the heart what force pushed the blood out of the heart and into the arterie?
The atria Actually, it is the contractions (squeezing) of the ventricles (the lower parts of the heart), not the atria (the upper parts), that do the pumping. That's why the lower part of the heart is larger, and the muscular walls are thicker. The atria receive the blood from the body and pump it down into the ventricles.
Are ventricles superior?
In the context of the heart, the ventricles are not considered superior; they are actually located inferior to the atria. The atria are positioned above the ventricles, receiving blood from the body and lungs before it is pumped into the ventricles. Therefore, in anatomical terms, the atria are superior to the ventricles.
Function of atria?
ventricles
What part of the blood is atria and ventricles?
The Atria and Ventricles are parts of the heart not the blood. The Atria is the upper chambers of the heart and the Ventricles are the lower chambers of the heart.
Comparing the walls of the atria and venticles?
The walls of the atria are thinner and less muscular compared to the walls of the ventricles. This is because the atria primarily receive blood returning to the heart and only need to push it into the ventricles, while the ventricles must generate stronger contractions to pump blood out of the heart and into the lungs or the rest of the body. Consequently, the ventricular walls, especially the left ventricle, are significantly thicker to accommodate the higher pressure required for systemic circulation.
