Immune system

Terms	Definitions
HIV	virus that attacks T cells
Killer T cells	white blood cells that kill infected cells directly
macrophage	a white blood cell that eats anything foreign in the body
B cells	white blood cells that produce antibodies
antibodies	chemicals that fit onto an antigen perfectly
antibodies	binds pathogens and marks them for destruction
memory cells	remembers what the foreign antigen looked like just in case
probiotics	good bacteria that line your digestive system and protect you from invading pathogens
interferon	produced by infected cells to protect neighboring cells from a pathogen
helper t cells	white blood cells that release cytokines when they come across a strange antigen
auto immune disorder	disease caused when the immune system begins attacking organs in its own body
fever	an increase in temperature that kills bacteria
allergy	an overreaction of the immune system
vaccine	an artificial way of forcing the body to create memory cells
antigen	carbohydrate nametags on the outside of cells
immune system	The system in charge of protecting and defending the body
mucus	A wet sticky substance used to trap foreign objects as they enter the body
cytokines	The chemical produced by helper t cells that summons killer t cells and b cells to fight foreign objects.
cilia	bristles in the ear and nose used to trap incoming pathogens
skin	outermost layer of protection on the body

Quizlet