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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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Chapter
Section
BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

The difference between the pressure in the lumen of a vessel and that of the pressure surrounding the vessel is called the

A. Driving pressure

B. Transmural pressure

C. Diastolic pressure

D. Intravascular pressure

Summary Introduction

Introduction:

Pressure is exerted when the blood moves in the vessels. This pressure is mainly on pulmonary and systematic vascular systems. There are three types of pressure that can be used for studying the blood flow. These are intravascular pressure, driving pressure, and transmural pressure.

Explanation

Justification for the correct answer:

Option (b) is given as transmural pressure. Transmural pressure is the difference between the intravascular pressure and the pressure around the vessel. It is positive when the intravascular pressure is higher than the pressure outside the vessel. It is negative when the pressure surrounding the vessel is higher than the intravascular vessel. Hence, option (b) is correct.

Justification for the incorrect answers:

Option (a) is given as driving pressure. The difference between the pressure at one point of the vessel and pressure at any point downstream is known as the driving pressure...

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