Question

1 pt When you lie down with legs up, which of the following is true: This creates an increase in preload, activating the Frank-starling mechanism This creates an increase in afterload, activating the Frank-Starling mechanism This creates a decrease in preload, activitating the baroreflex This creates a decrease in right atrial pressure, activating the Bainbridge reflex.

Answer 1

Answer is Option a

Yes this will cause the return flow of venous blood from lower extremity to increase due to gravity advantage and activate the frank- Starlin Mechanism that will cause the increase in stroke volume as a result of increase in preload . So Option b,c and d are wrong and Option a is correct

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