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The normal  nerve response of arterioles in lower extremities is _______ at rest and _______ during exercise due to the relaxation of the smooth muscle cells.

Which vessels are displayed at 1 & 2 respectively?

Valves are more numerous in the _______ venous system than in the _______ venous system.

At about the 4th lumbar vertebra, near the level of the umbilicus, the abdominal aorta divides into which right and left vessels?

Which is not considered a normal flow characteristic of lower extremity veins?

How would you classify this waveform?

Which is considered a prominent thigh perforator?

For a stenosis to be hemodynamically significant, it must cause which of the following?

What vasculature would be noted at the arrow in the distal forearm?

Match the effect respiration has on venous return during the indicated phase.