Which of the Following Would INCREASE the Rate of Flow

Question

Which of the following would INCREASE the rate of flow in blood vessels?
A)decreasing the length and increasing the diameter of the blood vessels
B)decreasing the length and diameter of the blood vessels
C)increasing the length and decreasing the diameter of the blood vessels
D)None of the answer options is correct.

Accepted Answer

Increasing the diameter of blood vessels (vasodilation) and decreasing their length (by smoothing out any kinks or curves) will decrease resistance to blood flow, allowing for a faster rate of flow. Decreasing the diameter of blood vessels or increasing their length will increase resistance to blood flow, slowing down the rate of flow.