Lung Disease

Descrição

A Level Biology Mapa Mental sobre Lung Disease, criado por Olivia Farrow em 16-11-2014.
Olivia Farrow
Mapa Mental por Olivia Farrow, atualizado more than 1 year ago
Olivia Farrow
Criado por Olivia Farrow aproximadamente 10 anos atrás
86
0

Resumo de Recurso

Lung Disease
  1. Pulmonary Fibrosis
    1. Scar tissue forms on the epithelium of the lungs, become irreversibly thickened.
      1. Therefore, diffusion pathway is increased, oxygen cannot diffuse as efficiently.
      2. Reduces elasticity of the lung.
        1. Makes it difficult to breathe, therefore ventilate the lungs
        2. Shortness of breath
          1. Chronic dry cough- Bodies reaction to the obstruction of the fibrous tissue
            1. Pain and discomfort in chest
              1. Weakness and fatigue
        3. Asthma
          1. Localised allergic reaction
            1. Air pollutants/exercise/infecction causes white blood cells on the linings of the bronchi to release histamine
            2. Linings of airways becomes inflamed
              1. Cells on epithelial lining secrete large quantities of mucus.
                1. Fluid leaves capillaries and enters the airways
                  1. Muscles surrounding the bronchioles contracts, constricting airways
              2. Overall, much greater resistance to the flow of air in and out.
                1. Difficult to ventilate and therefore maintain the diffusion gradient across the exchange surface.
                  1. Wheezing sound when breathing.
                    1. Tight feeling in chest
                      1. Coughing in response to obstructed bronchi
              3. Emphysema
                1. Elastin in lungs has become permanently stretched
                  1. Lungs are no longer able to force out all the air from the alveoli.
                  2. Surface area of the alveoli is reduced and sometimes bursts.
                    1. Little, if any, exchange of gases can take place across the damaged and stretched air sacs.
                    2. Shortness of breath, difficulty inhaling air
                      1. Chronic cough, body tries to remove damaged tissue and mucus
                        1. Bluish skin coloration, low levels of oxygen

                    Semelhante

                    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