null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
1651408
Lung Disease
Description
A Level Biology Mind Map on Lung Disease, created by Olivia Farrow on 16/11/2014.
No tags specified
lungs
disease
biology
a level
athsma
fibrosis
revision
as
allergies
lung
lung disease
biology
a level
Mind Map by
Olivia Farrow
, updated more than 1 year ago
More
Less
Created by
Olivia Farrow
about 10 years ago
85
0
0
Resource summary
Lung Disease
Pulmonary Fibrosis
Scar tissue forms on the epithelium of the lungs, become irreversibly thickened.
Therefore, diffusion pathway is increased, oxygen cannot diffuse as efficiently.
Reduces elasticity of the lung.
Makes it difficult to breathe, therefore ventilate the lungs
Shortness of breath
Chronic dry cough- Bodies reaction to the obstruction of the fibrous tissue
Pain and discomfort in chest
Weakness and fatigue
Asthma
Localised allergic reaction
Air pollutants/exercise/infecction causes white blood cells on the linings of the bronchi to release histamine
Linings of airways becomes inflamed
Cells on epithelial lining secrete large quantities of mucus.
Fluid leaves capillaries and enters the airways
Muscles surrounding the bronchioles contracts, constricting airways
Overall, much greater resistance to the flow of air in and out.
Difficult to ventilate and therefore maintain the diffusion gradient across the exchange surface.
Wheezing sound when breathing.
Tight feeling in chest
Coughing in response to obstructed bronchi
Emphysema
Elastin in lungs has become permanently stretched
Lungs are no longer able to force out all the air from the alveoli.
Surface area of the alveoli is reduced and sometimes bursts.
Little, if any, exchange of gases can take place across the damaged and stretched air sacs.
Shortness of breath, difficulty inhaling air
Chronic cough, body tries to remove damaged tissue and mucus
Bluish skin coloration, low levels of oxygen
Media attachments
Lung_disease_photo (image/png)
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
Cell Structure
megan.radcliffe16
Exchange surfaces and breathing
megan.radcliffe16
Biology AQA 3.1.5 The Biological basis of Heart Disease
evie.daines
OCR AS Biology
joshbrown3397
Carbohydrates
Julia Romanów
Biology AQA 3.2.5 Mitosis
evie.daines
Cells and the Immune System
Eleanor H
AQA Biology 8.1 structure of DNA
Charlotte Hewson
Bowlby's Theory of Attachment
Jessica Phillips
F211: Transport in animals keywords and info
Gurdev Manchanda
AS Biology - Types of Carbohydrates.
pheebzda
Browse Library