As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). If the blood speed increases by a factor of 3.09 and the total cross-sectional area of the venules is 8.8 cm^2, what is the total cross-sectional area of the capillaries feeding these venules?
How many capillaries are involved if their average diameter is 10.4 um? <--micrometers