Homeostasis and Immunity Flashcards
Passive
produces by the introduction of antibodies from another person
Active
produced by the body manufacturing antibodies against a foreign antigen
Artificial
results from giving people an antibody/antigen
Natural
occurs without human intervention
Passive + natural
antibodies enter bloodstream across placenta/milk
Passive + artificial
antibodies injected into bloodstream
Active + natural
ability to manufacture antibodies results from an attack of a disease
Active + artificial
ability to manufacture antibodies results from being given an antigen by vaccination
lymphocytes
t cells (killer/helper) b cells
killer t cells
migrate to site of infection and deal with the invading antigen. attach to invading cells and secrete substance that destroys antigen
helper t cells
attract macrophages to place of infection
intensify their activity
b cells
bind a specific antigen, against which it will initiate an antibody response
antibodies
specialised protein that is produced in response to a non-self antigen function to identify and help remove foreign antigens or targets such as viruses and bacteria. Every different antibody recognizes a specific foreign antigen
pathogens
a bacterium, virus, or other microorganism that can cause disease
antibody-mediated immunity
b cells
develop into plasma cells, produce antibodies and release them into blood and lymph
antibodies combine with specific antigen and destroy it