EBK ESSENTIALS OF PATHOPHYSIOLOGY
EBK ESSENTIALS OF PATHOPHYSIOLOGY
4th Edition
ISBN: 9781469893389
Author: PORTH
Publisher: WOLTERS KLUWER HEALTH (COURSE)
Question
Book Icon
Chapter 21, Problem 1RE

A.

Summary Introduction

To determine: The decreased compliance in fibrotic lung disease.

Introduction. The respiratory tract is the long tube that extends from the nose to the lungs. The inner lining of the respiratory tract is lined by mucosa that secrets mucous for easy expansion and contraction of the tube and also to trap the dust and foreign particles in the mucous membrane.

A.

Expert Solution
Check Mark

Explanation of Solution

As a person ages the work required for breathing increases as the muscles will have to put more effort intobreathing due to the increased resistance and loss of elasticity in the muscles. With advancing age the flexibility and the elasticity in the muscles decrease due to which the individual’s body feels more rigid which requires more effort and so he/she becomes more exhausted in routine activities. This also takes place in case of fibrotic disease where scarring of lung tissue and decreases the gaseous exchange capacity. The fibrosis prevents the gaseous exchange in individuals and exerts pressure on lungs thereby decreasing lung capacities.

B.

Summary Introduction

To determine: The increased airway resistance in emphysema.

Introduction: The partial pressure of carbon dioxide determines the pH of the body tissues as it is circulated through the blood to all the body tissues and is exchanged with oxygen. The body tissues have high partial pressure of carbon dioxide due to anaerobic respiration and low partial pressure of oxygen which helps to exchange carbon dioxide and oxygen.

B.

Expert Solution
Check Mark

Explanation of Solution

Emphysema is a lung disorder that leads to shortness of breath. In people with emphysema, the air sacs or alveoli in the lungs are damaged. Over time, the inner walls of the air sacs weaken and rupture creating larger air spaces instead of many small ones. The increase in the spaces between the alveoli hampers with the gaseous exchange and decreases lung compliance. The loss of alveolar space causes an increase in airway resistance and prevents oxygen and carbon dioxide from diffusing in the alveolar spaces easily.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Chapter 21 Solutions

EBK ESSENTIALS OF PATHOPHYSIOLOGY

Knowledge Booster
Background pattern image
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education