Chapter 21, Problem 19RQ

A major difference between the arterial and venous systems is that (a) arteries are usually more superficial than veins, (b) in the limbs there is dual venous drainage, (c) veins are usually less branched com­pared to arteries, (d) veins exhibit a much more orderly pattern of branching in the limbs, (e) veins are not found in the abdominal cavity.