Which of the following intrinsic or extrinsic changes would result in an increase in stroke volume? Group of answer choices An increase in diastolic blood pressure A decrease in preload A decrease in ventricular compliance An increase in venous return Arterial constriction

An increase in diastolic blood pressure

Explanation:

Stroke volume is defined as the volume of blood let out from the left ventricle in a single heartbeat.

Diastolic pressure is the pressure on the arterial wall between heartbeats.

As Stroke volume increases, end diastolic volume increase slightly. This increased disatolic volume leads to the Frank-Starling mechanism which contributes to the increased stroke volume (stroke volume increases when end-diastolic volume increases). Since pressure and volume are directly proportional, an increase in stroke pressure also leads to an increase in the diastolic pressure.

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.

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