adaptive defense system Flashcards
what is the second line defense against infection
adaptive defense system
what does the adaptive defense system consist of
lymphatic system, white blood cells, and antibodies
what are foreign invaders that the body has been exposed to
antigen
what do antigens consist of
bacteria or viruses that induce immune response
what are white blood cells that engulf foreign invader and present antigen on its surface
antigen-presenting cells
what are a type of white blood cell that helps to activate other cells of the immune system
helper T cells
what cell does helper T cells induce
B cells
what does helper T cell induce b cells to secrete
large number of antibodies to bind to antigen
what are a type of white blood cell that destroys infected cells
cytotoxic T cells
what are chemicals that help regulate immune response and activate cytotoxic t cells
cytokines
what are proteins that attach to antigens and help destroy them
antibodies
what are white blood cells that remember a specific specific foreign invader and help the body respond more quickly if invader enters the body again
memory cells
