Arterioles offer more resistance to flow than other vessels since they have

A. False  Wall thickness is not a factor determining resistance.

B. False  But it suggests that the resistance they offer may be varied by change in nerve activity.

C. False  Capillaries have even smaller internal diameters.

D. False  The aorta has a much smaller total cross-sectional area.

E. True  The pressure drop across the arteriolar bed is larger than in other beds indicating that arterioles are responsible for most of the circulation’s vascular resistance