Define end-diastolic volume (EDV).

Study for the Ivy Tech Anatomy and Physiology II Heart Test. Access flashcards and multiple choice questions, each with helpful hints and explanations. Prepare effectively for your exam and bolster your understanding of heart anatomy and physiology!

Multiple Choice

Define end-diastolic volume (EDV).

Explanation:
End-diastolic volume is the amount of blood in a ventricle at the end of the filling phase, right before the heart contracts. It represents the preload—the volume available to be ejected during the next beat. The bigger this filling volume (within normal limits), the more forcefully the ventricle can contract and the greater the stroke volume, via the Frank-Starling relationship. This is different from the volume left in the ventricle after contraction (end-systolic volume) and from the amount ejected per beat (stroke volume, which is EDV minus end-systolic volume).

End-diastolic volume is the amount of blood in a ventricle at the end of the filling phase, right before the heart contracts. It represents the preload—the volume available to be ejected during the next beat. The bigger this filling volume (within normal limits), the more forcefully the ventricle can contract and the greater the stroke volume, via the Frank-Starling relationship. This is different from the volume left in the ventricle after contraction (end-systolic volume) and from the amount ejected per beat (stroke volume, which is EDV minus end-systolic volume).

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy