humany physiology question.. please! i need help!!?

Question

Assuming a capillary diameter of 8 um(micrometer), a capillary length of 1mm, and an average velocity of blood flow through the capillary of 1 mm/sec., how much time is required for 1ml of blood to pass through a single capillary? Report the answer in days.


And if you can show me how you got the answer, that would be great! thanks!!

ok, this is what i got. please tell me if it's right.

it will take .023 day for a ml of blood to pass through the capillary.

Answer 1

i believe some learning should be required to get credit for courses so i will only suggest that you draw a picture of the capillary and blood and note that for any cylinder, including a capillary, the cross sectional area (a circle) times the length will give you the volume. Divide the 1 mL of bood by capillary volume to figure out how many secs and convert to days.

here is a table constructed to solve the problem converting all metric to units of measure to one of following; cms, square cms and CCs, the table shifted, so you still have to understand conversions, which you may have some idea already

item mm microns cms square cms CCs
capillary diameter 8 0.0008
capillary radius 4 0.0004
capillary length 1 0.1
capillary circle area 5.024E-07
capillary volume = volume blood/second 5.024E-08
seconds for 1 ml blood 19904458.6
days for 1 ml blood 230.3756782

Answer 2

Yes I do. I've had too many security jobs, bar-tending jobs, and worked around others in public enough to know and seen the changes in the human animal. Cops we would have to call to the bars to break up fights or haul people to jail always believed the same thing unless they were new on the job and young. And now-a-days... I just sit back and howl and enjoy a full moon.

Answer 3

According to my calculations,all blood will need only about 500 sec,(80 mins approx) to move through it.