Which statement does not accurately describe veins?
a. Have less elastic tissue and smooth muscle than arteries.
b. Contain more fibrous tissue than arteries.
c. Most veins in the extremities have valves.
d. Always carry oxygen-poor blood.

In comparing a parallel artery and vein, you would find that

a. The artery wall is thicker

b. The artery diameter is greater

c. The artery lumen is smaller

d. The artery endothelium is thicker

Name three factors that are important in promoting venous return.

How is blood pressure maintained in veins to counter the force of gravity?

Identify the major veins in the following diagram.

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a. ___

b. ___

c. ___

d. ___

e. ___

f. ___

g. ___

h. ___

i. ___