Which element of a memo assigns tasks, gives instruction, and requests action? (757-759)

The right atrium receives blood from the?

A) ?vena cava. B) ?pulmonary veins. C) ?pulmaonary trunk. D) ?aorta.

Which of the following does not decrease the blood pressure?

A. Decreased cardiac output B. Vasoconstriction C. Vasodilation D. Loss of blood E. Dehydration