What happens to venous return when a person lies down?

Show Answers

Venous return increases immediatelyHeart rate stabilizes slightly above normalCerebral blood flow rises and stabilizes above normalBlood supply to the lung apex decreases

Explanation

When a person lies down, venous return to the heart increases immediately due to the redistribution of blood volume. Other parameters such as heart rate and cerebral blood flow may adjust but do not show the immediate increase seen in venous return. Blood flow to the apex of the lung typically does not decrease in this position.