Immune System Story KEY Character in Story Part in Immune System

Immune System Story KEY Character in

Part in Immune

Story

System

Spiky Intruder /Friend

Pathogen

Start immune response; cause infection

River

Mucus

Traps pathogens

House

Cell

Reproduces viruses

Security company

Activated B cell

Produces plasma and memory B cells

Marking paint

Antibodies

Mark and immobilize antigens

Paint sprayers

Plasma Cells

Role in Immune System

Security Guard Interns

Memory B Cells

Produce antibodies 1st time pathogen is encountered Produce antibodies after 1st encounter with pathogen

Cement Wall

Skin

Prevents pathogens from entering body

Dog

Macrophage

Engulfs pathogens and dead/damaged cells

Ripped Shirt

Antigen

Activates/signals helper T cells

Neighbors

Helper T Cells

Activate B cells, memory T cells, and CTLs

Heat Shield

Fever

Denatures pathogen’s enzymes

Police

Cytotoxic T Lymphocytes

Kill infected body cells 1st time

Police Trainees

Memory T cells

Kill infected body cells after 1st time