Immune System Components - SI Quiz

Defensins

Secreted by epithelia to disrupt and kill pathogens.

Defensins (Adaptive/Innate?)

Innate

T cells

Differentiates into CD4+ and CD8+.

T cells (Adaptive/Innate?)

Adaptive

NK cells

Secrete perforin and protease to lyse infected cells.

NK cells (Adaptive/Innate?)

Both

MHC I

Displays epitopes for CD8+ cells.

MHC I (Adaptive/Innate?)

Both

Membrane attack complexes

Create pores that allow ions to enter cells, causing lysis.

Membrane attack complexes (Adaptive/Innate?)

Innate

Plasma cells

Differentiated from B cells and produce large amounts of antibodies.

Plasma cells (Adaptive/Innate?)

Adaptive

Macrophages

Bind to pathogen and secrete cytokines.

Macrophages (Adaptive/Innate?)

Innate

Mast cells

Secrete histamine to cause inflammation.

Mast cells (Adaptive/Innate?)

Innate

Helper T cells

Activated by MHC II and helps B cells.

Helper T cells (Adaptive/Innate?)

Adaptive

Monocytes

Attracted to cytokines and differentiate into macrophages.

Monocytes (Adaptive/Innate?)

Innate

Memory B cells

Long-living cells that contain the antibody of previous immune responses.

Memory B cells (Adaptive/Innate?)

Adaptive

Eosinophils

Attach to large parasitic pathogens.

Eosinophils (Adaptive/Innate?)

Innate

Pyrogens

Stimulate hypothalamus to secrete prostaglandins.

Pyrogens (Adaptive/Innate?)

Innate

PAMPs

Non-host patterns that are recognized by phagocytic cells.

PAMPs (Adaptive/Innate?)

Innate

MHC II

Displays epitopes for CD4+ cells.

MHC II (Adaptive/Innate?)

Adaptive

B cells

Recognizes antigens on helper T cells, which causes this cell to clone itself.

B cells (Adaptive/Innate?)

Adaptive