Chapter 14: Lymphatic and Immune System Flashcards
macrophages
phagocytose foreign substances
B lymphocytes (B cells)
matures into a plasma cell
produce antibodies after exposure to antigens
mature in the bone barrow
humoral immunity
T lymphocytes (T cells)
attack bacteria and foreign cells directly
originate in the thymus
cell-mediated immunity
what does the spleen do
destroys old red blood cells
filters foreign material out of blood
activates lymphocytes
stores blood
what does the thymus gland do
provides immunity
natural immunity
resistance at birth that is not dependent on prior exposure to antigen
ex. you naturally have macrophages
adaptive immunity
ability to recognize and remember specific antigens and mount an attack on them
cytotoxic T cells
attach to and directly kill antigen
helper T cells
promote antibody making
supressor T cells
inhibit B and T cells from attacking body’s good cells
dendritic cells
antigen-presenting cell that shows T and B cells what to attack
monoclonal antibodies
multiple copies of genes or cells that kill tumor cells
type of passive immunotherapy
vaccines
have antigens from patient’s tumor cells that stimulate patient’s own T cells to recognize and kill cancer cell
type of active immunotherapy
transfer of immune cells
T lymphocytes from a bone marrow donor can replace a patient’s immune system with new cells that recognize tumor cells as foreign cells and kill them
antibody
protein produced by B cells to destroy antigens
compliment code
proteins in the blood that help antibodies and kill their target
cytokines
proteins secreted by cytotoxic T cells to aid in antigen destruction
immunoglobulin
antibodies secreted by plasma cells in response to an antigen
immunotheraphy
use of immune cells, antibodies, or vaccines to treat or prevent disease
interferons
proteins secreted by T cells and other cells to aid and regulate the immune response
interleukins
proteins that stimulate the growth of B and T lymphocytes
monoclonal antibody
antibody produced in a laboratory to attack antigens and to destroy cells
plasma cell
lymphocyte that secretes antibodies and matures from B lymphocytes
tolerance
ability of T lymphocytes to recognize and accept the body’s own antigens as self
