What are the cells of Cell mediated immunity? What do they defend against?

-T-cells-defend against infections like tuberculosis, viral and fungal More test answers on https://studyhippo.com/microbiology-pt-2-2133/

Cell mediated immunity (Cellular immunity)

The attacking virus would be considered an intracellular pathogen More test answers on https://studyhippo.com/mastering-ap-chapter-20-lymphatics/

7. The contribution of B cells is mainly in A. inflammation. B. humoral immunity. C. complement activity. D. cell mediated immunity. E. phagocytosis.

B. humoral immunity. More test answers on https://studyhippo.com/microbiology-exam-questions-2041/

Cells in cell mediated immunity

Cytotoxic T cells More test answers on https://studyhippo.com/test-3-material-3-2773/

Granuloma annulare. Ring-shaped infiltrated edge, clinically annular element without peeling. Pathogenesis: proposed- Cell mediated immunity (type IV), immune complex vasculitis, abnormality of tissue monocytes. Symptoms: Localized=groups of 1-2mm papules in annular arrangement. Centers of lesions may be slightly hyperpigmented. Generalized=1-2mm papules coalesce into annular plagues measuring 3-6cm in diameter. Sites: dorsal surface of feet, hands and fingers, aural area of trunc. Ddx: Annular lichen planus, Tinea corporis, Leprosy Diagnosis: history and clinical Treatment: Localized=topical corticosteroids, cryotherapy, laser therapy Generalized=UVB, PUVA, Isotretinoin

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cell mediated immunity steps

1. an antigen evades body’s innate defenses2. antigen is taken up by an antigen-presenting cell (APC; dendritic cells) and broken down3. antigen fragments merge with MHC proteins on the APC’s membrane4. T-cell comes into contact with APC, recognizes the “new” MHC protein and becomes active5. activated T-cells divide & differentiate More test answers on https://studyhippo.com/test-3-material-3-2773/