mi·cro·vas·cu·la·ture 
(mī′krō-văskyə-lə-chr′, -chər)
(mī′krō-văskyə-lə-chr′, -chər)n.
The portion of the circulatory system composed of the smallest vessels, such as the capillaries, arterioles, and venules.
mi′cro·vascu·lar (-kyə-lər) adj.