Chronic Inflammation 1 Flashcards
Lymphocyte
Immune response that releases antibodies (B cells), cytotoxic granules (cytotoxic T cells) or by signalling to other cells of the immune system (helper T cells).
Plasma Cells
Differentiated B cells that produce antibodies specific to the antigen
Macrophages
Type of phagocyte, which detects, engulfs and destroys pathogens.
They’re produced through the differentiation of monocytes
Fibroblasts
Makes and assembles structural proteins - ECM and collagen
Causes of chronic inflammation.
Acute inflam. unable to remove debris or large volume of damage.
Primary lesions - no acute phase
Healing and repair process by granulation tissue
- Capillaries grow into inflammatory mass
- Plasma proteins and macrophages move from capillaries into damaged tissue
- Fibroblasts produces collagen - repair framework
- Collagen replaces inflammatory exudate
Adverse effects of tissue scarring
Fibrous scar tissue
Can restrict movement - scarred lung after interstitial pneumonia - harder to breathe
Effects of chronic inflammation
Granulation tissue repairs and leads to fibrosis and formation of a scar