Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 41.3, Problem 1CC
Summary Introduction
To write:
About the problem that could occur to a fluid flowing in a capillary if the protein concentration in the human body is reduced.
Introduction:
Oncotic pressure is also known as colloid osmotic pressure, where it is induced by proteins (albumin) displacing water molecules in the blood vessel’s plasma. It has the opposite effect to that of hydrostatic pressure moving water and other small molecules out of the blood vessels.
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Blood pressure at the arterial end of capillaries is about 40 mm Hg in humans. If blood pressure at the venous end is about 15 mm Hg, and colloid osmotic pressure is 25 mm Hg throughout, what is the net effect on fluid movement between capillaries and tissue spaces?
Describe laminar flow and turbulent flow through a tube.What conditions cause turbulent flow of blood?
What is the only solute that has a significant concentration difference across the capillary wall? How does this difference influence water concentration?
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