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Respiratory pathology - Coggle Diagram

- - - - Rhinitis
        
        Serous
        
        Mild / initial response
        
        Serous gland product
        
        Transparent
        
        Catarrhal
        
        Serous + mucus
        
        Leukocytes + epithelial cells
        
        Thick, translucent / slightly turbid
        
        Purulent (suppurative)
        
        Mucosal necrosis ; bacterial infection
        
        Neutrophils
        
        Nasal obstruction
        
        Fibrinous
        
        Markedly increased vascular permeability
        
        Fibrinogen exudation --> fibrin formation
        
        Pseudomembrane
        
        (Ulceration)
        
        Granulomatous
        
        Macrophages
        
        Causes
        
        Fungi. mycobacteria; foreign bodies; viral
    - - Congestion / hyperemia
      - Haemorrhage (Epistaxis)