1. DR was assessed by quantitative morphometry of capillary bed.

2. The bronchioles terminate in a capillary bed.

3. The density of capillary bed in the ulcer area of ergonovine group decreased.

4. We have created a capillary bed in vitro by seeding an alginate scaffold with endothelial cells, which normally line blood vessel walls, then culturing the construct in a bioreactor.

5. Arteries carry blood away from the heart to the capillary bed while veins return blood to the heart from the capillary bed.

6. Their stromal counterparts may differentiate and migrate from this space to reside on the abluminal side of marrow sinusoids and form a three-dimensional network that invests the capillary bed.