Which One of the Following Statements is TRUE Regarding Arterioles

Question

Which one of the following statements is TRUE regarding arterioles and arteries?
A) Arterioles and arteries transport blood from capillaries to veins.
B) Blood pressure in arterioles is greater than the blood pressure in arteries.
C) Arterioles are smaller and have less smooth muscle than arteries.
D) Arteries do not contain valves, whereas arterioles do.
E) Small sphincter muscles regulate the flow of blood from arteries into arterioles.

Accepted Answer

Arterioles are smaller in diameter than arteries and have less smooth muscle in their walls. They play a key role in regulating blood flow and pressure by constricting or dilating.