Innate Immunity Overview

<p>Promoting inflammation and complement activation (C)</p> Signup and view all the answers

<p>Skin (C)</p> Signup and view all the answers

<p>Both T cells and B cells are lymphocytes. (B)</p> Signup and view all the answers

<p>They compete with pathogens for resources. (A)</p> Signup and view all the answers

<p>Their concentration increases rapidly in response to infection. (D)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>To destroy infected cells (A)</p> Signup and view all the answers

<p>Class II MHC (D)</p> Signup and view all the answers

<p>Regulating immune responses and combating extracellular pathogens (A)</p> Signup and view all the answers

<p>T cells recognize antigens only when presented in combination with MHC molecules (B)</p> Signup and view all the answers

<p>Destroying infected or cancerous cells (B)</p> Signup and view all the answers

<p>Basophils (B)</p> Signup and view all the answers

<p>Eosinophils (C)</p> Signup and view all the answers

<p>Basophils (C)</p> Signup and view all the answers

<p>Displaying processed antigen fragments to T cells for recognition (A)</p> Signup and view all the answers

<p>Neutrophils (C)</p> Signup and view all the answers

<p>Mast cells (A)</p> Signup and view all the answers

<p>They develop from monocytes in tissues and are long-lived (C)</p> Signup and view all the answers

<p>Bone marrow (D)</p> Signup and view all the answers

<p>Lyse virally infected cells (B)</p> Signup and view all the answers

<p>Rapid response to initial infection (B)</p> Signup and view all the answers

<p>Mast cells (B)</p> Signup and view all the answers

<p>TH2 cells (B)</p> Signup and view all the answers

<p>PAMPs are unique molecules found on pathogens. (A)</p> Signup and view all the answers

<p>Recognize and bind to antigens (D)</p> Signup and view all the answers

<p>A progenitor T cell that has migrated to the thymus. (D)</p> Signup and view all the answers

Cells arising from pluripotent stem cells, including lymphocytes and phagocytes.

Produces lymphocytes; main types are T cells and B cells.

Generic, non-specific immune response without memory.

Components in innate immunity like complement proteins and CRP.

Acute-phase reactant involved in opsonization and complement activation.

Cells that engulf and destroy extracellular antigens.

Nonpathogenic bacteria that live in and on our bodies, aiding immunity.

Major Histocompatibility Complex; molecules that present antigens to T cells.

White blood cells that can phagocytize pathogens and circulate in blood.

Mature cells derived from monocytes, long-lived and effective at phagocytosis.

Majority of granulocytes, over 90%, primarily involved in phagocytosis.

Least common granulocytes, involved in allergic responses and releasing histamine.

Granulocytes that fight parasites, especially helminths, through IgE mediation.

Cells in connective tissues that regulate inflammatory responses and increase vascular permeability.

Cells that destroy infected or transformed cells without prior antigen exposure.

Cells such as dendritic cells and macrophages that activate T-cells by presenting antigens.

Immune cells that play roles in cell-mediated and humoral immunity, including CD4+ and CD8+ types.

Helper T cells that secrete cytokines to regulate immune responses and combat extracellular pathogens.

Killer T cells that destroy cells infected with intracellular pathogens or damaged cells.

Self receptors that present processed antigens to T cells; classified as Class I and Class II.

Signaling proteins released by CD4+ T cells that influence the activity of other immune cells.

Pathogen-Recognition Receptors on immune cells that detect PAMPs.

Pathogen-associated molecular patterns unique to infectious organisms.

Part of the immune system that adapts based on encountered antigens.

T cells that directly kill infected cells, specifically virally infected ones.

The rapid and stronger immune reaction upon re-encountering the same antigen.