Immune System Flashcards
Granulocytes contain
Granules in cytoplasm-neutrophils, basophils, eosinophils
Agranulocyte is a
White blood cell with no granules in its cytoplasm-lymphocytes and monocytes
Phogocytosis is
When cells consume and destroy foreign materials ‘cell eating’ e.g eosinophils, monocytes (largest WBC)
Leukocytes
WBC-defend the body
Which cells are involved in the humoral response?
B cells
B lymphocytes
Humoral immunity-resistance against extracellular pathogens- specific receptor is antibody
T lymphocytes
Cell-mediated immunity-resistance against intracellular pathogens; kill virus infected cells, activate macrophages, help antibody responses ,
Cytotoxic T lymphocytes
Killing of virally infected host cells
Inflammatory mediators
Prostaglandins, histamine, bradykinin
Neutrophils increase in
Bacterial infections-phagocytosis
Eosinophils increase in
Parasitic infections or allergies e.g asthma
Basophils increase in
Chicken pox, sinusitis, diabetes
Lymphocytes
Increase in infections and immune responses, destroy cancer & foreign cells and virally infected cells
Monocytes become
Tissue macrophages
A macrophage is
A phagocytic cell usually found in connective tissue
