Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Atrial systole is responsible for ejecting most of the blood into the ventricles during the ventricular filling phase of the cardiac cycle.

Accepted Answer

Step 1: Understand the cardiac cycle phases. The cardiac cycle consists of several phases, including ventricular filling, atrial systole, isovolumetric contraction, ventricular ejection, and isovolumetric relaxation. During ventricular filling, blood flows passively from the atria to the ventricles, primarily due to pressure differences. Step 2: Analyze the role of atrial systole. Atrial systole refers to the contraction of the atria, which occurs at the end of the ventricular filling phase. This contraction pushes a small additional volume of blood (known as the atrial kick) into the ventricles, but most of the blood enters passively before atrial systole. Step 3: Evaluate the statement. The statement claims that atrial systole is responsible for ejecting most of the blood into the ventricles during the ventricular filling phase. This is incorrect because most of the blood enters the ventricles passively due to pressure differences, not because of atrial systole. Step 4: Correct the false statement. The corrected statement should read: 'Atrial systole is responsible for ejecting a small additional volume of blood into the ventricles during the ventricular filling phase of the cardiac cycle.' Step 5: Summarize the key concept. Atrial systole contributes to ventricular filling but is not the primary mechanism for moving most of the blood into the ventricles; passive filling accounts for the majority of the blood transfer.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Atrial systole is responsible for ejecting most of the blood into the ventricles during the ventricular filling phase of the cardiac cycle.

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Atrial Systole

Ventricular Filling Phase

Cardiac Cycle

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.Atrial systole is responsible for ejecting most of the blood into the ventricles during the ventricular filling phase of the cardiac cycle.

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Atrial Systole

Ventricular Filling Phase

Cardiac Cycle

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Atrial systole is responsible for ejecting most of the blood into the ventricles during the ventricular filling phase of the cardiac cycle.