bind like a lock-and-key to pathogen and kill them
A macromolecule that causes an immune response by lymphocytes.
antigen
Cytotoxic T cells protect the body by
attacking some tumor cells and transplanted tissue cells, as well as cells infected by viruses
An enzyme in sweat, tears, and saliva that attacks bacterial cell walls.
lysozyme
The process of generating a state of immunity by artifical means
immunization
The kind of cell that produces large numbers of antibodies is the
B lymphocyte
Any foreign material that can get inside your body and make you sick is called a
pathogen
Also called adaptive immunity.
acquired immunity
A type of white blood cell that mediates acquired immunity
lymphocyte
A type of white blood cell that can kill tumor cells and virus-infected cells; an important component of innate immunity.
natural killer (NK) cell
An antigen is
any molecule that the body recognizes as foreign
The initial acquired immune response to an antigen, which appears after a lag of about 10 to 17 days.
primary immune response
T cells are made in _____ and mature in ____
bone marrow, thymus
Give an example of a surface barrier that prevents pathogens from entering the body
skin, mucous, tears
A small organ in the thoracic cavity of vertebrates where maturation of T cells is completed.
thymus
The name of the late stages of HIV infection
AIDS (acquired immunodeficiency syndrome)
The most abundant type of white blood cell.
neutrophil
A type of T cell that, when activated, secretes cytokines that promote the response of B cells
helper T cell
What develops after the primary immune response?
memory cells, secondary immune response
A protein secreted by B lymphocytes
antibody
What are lymphocytes?
Lymphocytes are a type of white blood cell
Memory cells play a vital immune role
in specific immunity, when you are exposed to a pathogen for the second time
What is a phagocyte cell?
A type of white blood cell that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.
Give an example of an autoimmune disorder
rheumatoid arthritis, lupus, multiple sclerosis
A phagocytic cell present in many tissues that functions in innate immunity by destroying microbes and in acquired immunity as an antigen-presenting cell.
macrophage
A type of lymphocyte that develops to maturity in the bone marrow
B lymphocyte
Macrophages and dendritic cells are
antigen presenting cells
What is phagocytosis?
process by which certain living cells called phagocytes ingest or engulf other cells or particles
Your experience on this site will be improved by allowing cookies.