Question
(a) 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 4.00 and the total cross-sectional area of the venules is $10.0 \textrm{ cm}^2$, what is the total cross-sectional area of the capillaries feeding these venules? (b) How many capillaries are involved if their average diameter is $10.0 \textrm{ }\mu\textrm{m}$?
1. $40.0 \textrm{ cm}^2$
2. $5.09 \times 10^7$
Solution Video