An artery of diameter 1.0 cm divides completely into capillaries, each of diameter 20 microns. There are a large number of capillaries, N, such that the net cross sectional area for these capillaries is equal to the cross sectional area of the artery. What is AP/AP, the ratio of the pressure change per unit length along one of the capillaries (AP) to that of the pressure change per unit length along the artery (AP)?

An artery of diameter 1.0 cm divides completely into capillaries, each of diameter 20 microns. There are a large number of capillaries, N, such that the net cross sectional area for these capillaries is equal to the cross sectional area of the artery. What is AP/AP, the ratio of the pressure change per unit length along one of the capillaries (AP) to that of the pressure change per unit length along the artery (AP)?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

Q. Blood flow.
An artery of diameter 1.0 cm divides
completely into capillaries, each of
diameter 20 microns. There are a large
number of capillaries, N, such that the net
cross sectional area for these capillaries is
equal to the cross sectional area of the
artery. What is AP:/APa, the ratio of the
pressure change per unit length along one
of the capillaries (AP) to that of the
pressure change per unit length along the
artery (APa)?
O2.5 x105
O1.0
O4.0 x10-6
5.0 x102
12 x108
O
6.2 x1010
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