Understanding Blood Pressure and Cardiac Output

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The amount of blood ejected from the heart with each contraction (correct)
The pressure created in the left ventricle by the volume of blood at the end of diastole
The volume of blood pumped out by the heart per minute
The ventricular volume and distension just before

The amount of blood ejected from the heart with each contraction
The pressure created in the left ventricle by the volume of blood at the end of diastole (correct)
The volume of blood pumped out by the heart per minute
The ventricular volume and distension just before

<p>Cardiac Output (CO) = Heart Rate (HR) x Stroke Volume (SV) (B)</p> Signup and view all the answers

<p>Preload, afterload, and contractility (C)</p> Signup and view all the answers

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Preload refers to the degree of stretch of the cardiac muscle fibers at the end of diastole.
Higher preload increases stroke volume due to the Frank-Starling mechanism.

Cardiac output is calculated using the formula:
- Cardiac Output = Heart Rate x Stroke Volume

Contractility: Strength of the heart's contractions; increased contractility raises stroke volume.
Preload: More venous return leads to higher preload and increased stroke volume.
Afterload: Resistance the heart must overcome to eject blood; higher afterload can decrease stroke volume.