EBK ANATOMY & PHYSIOLOGY
5th Edition
ISBN: 9780321888013
Author: Hoehn
Publisher: VST
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Chapter 18, Problem 13CYU
Summary Introduction
To review:
The answers to the following:
a. To predict the flow of fluid if a severe bacterial infection occurs in the surrounding tissue.
b. To calculate the NFP at the venous end of the capillary if OPif increases to 10 mm Hg.
c. The direction of fluid flow at the venous end.
Introduction:
Blood flow is also known as tissue perfusion. It is involved in transporting nutrients and oxygen to the tissues, exchanging of gases, absorbing nutrients, and producing urine. The flow of blood to all the organs is maintained for their proper function.
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Suppose OP if rises dramatically—say because of a severe bacterial infection in the surrounding tissue. (a) Predict how fluid flow will change in this situation. (b) Now calculate the NFP at the venous end of the capillary. If OP if increases to 10 mm Hg. (c) In which direction does fluid flow at the venous end of the capillary now—in or out?* (see fig. and attached with snipped method if neccessary)
Which factor blood pressure or osmotic pressure has the greatest influence on the direction of fluid movement through capillary walls at (a) the venous and of the capillary and (b) the arterial end of the capillary?
A normal human contains 5 liters of blood, approximately 2% of which isresident in the systemic (i.e., non-pulmonary) capillaries at any given time.(a) Assuming that the capillaries are 8 μm in diameter, estimate the totallength of capillaries in the body (excluding the lungs).(b) If an average capillary length is 1 mm, how many capillaries are therein the body?(c) Cardiac output is 5 l/min. Assuming that this is evenly distributedthroughout a parallel network consisting of the capillaries found in (b),estimate the pressure drop across the capillary bed. Assume Newtonian,laminar flow in the capillaries with μeff of 3.5 cP. What percentage ofthe total 85mmHg systemic pressure drop is this?
Chapter 18 Solutions
EBK ANATOMY & PHYSIOLOGY
Ch. 18 - Which branch of the autonomic nervous system...Ch. 18 - When vascular smooth muscle contracts, what...Ch. 18 - Name the type of artery that matches each...Ch. 18 - Prob. 4CYUCh. 18 - Prob. 5CYUCh. 18 - In the systemic circuit, which contains more...Ch. 18 - List three factors that determine resistance in a...Ch. 18 - Suppose vasoconstriction decreases the diameter of...Ch. 18 - Prob. 9CYUCh. 18 - The kidneys play an important role in maintaining...
Ch. 18 - Suppose you are in a bicycle race. What happens to...Ch. 18 - If many arterioles in your body dilated at once,...Ch. 18 - Prob. 13CYUCh. 18 - Your neighbor, Bob, calls you because he thinks he...Ch. 18 - Prob. 15CYUCh. 18 - Prob. 16CYUCh. 18 - Prob. 17CYUCh. 18 - You are assessing the circulation in the leg of a...Ch. 18 - In what important way does the area drained by the...Ch. 18 - Prob. 20CYUCh. 18 - Prob. 21CYUCh. 18 - Name the leg veins that often become varicosed.Ch. 18 - Prob. 23CYUCh. 18 - Which statement does not accurately describe...Ch. 18 - Smooth muscle in the blood vessel wall (a) is...Ch. 18 - Peripheral resistance (a) is inversely...Ch. 18 - Which of the following can lead to decreased...Ch. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - The structure of a capillary wall differs from...Ch. 18 - Prob. 8RQCh. 18 - The myocardium receives its blood supply directly...Ch. 18 - Blood flow in the capillaries is steady despite...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - How is the anatomy of capillaries and capillary...Ch. 18 - Prob. 16RQCh. 18 - Write an equation showing the relationship between...Ch. 18 - Prob. 18RQCh. 18 - Describe the neural mechanisms responsible for...Ch. 18 - Explain the reasons for the observed changes in...Ch. 18 - Prob. 21RQCh. 18 - Prob. 22RQCh. 18 - How are nutrients, wastes, and respiratory gases...Ch. 18 - Prob. 24RQCh. 18 - Physiologists often consider capillaries and...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...
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