The Lymphatic and Immune Systems
Immunoglobulin E
Appears in glandular secretion; associated with allergic reactions
Immunoglobulin G
Effective against bacteria, viruses, and toxins
Immunoglobulin M
First Ig produced after infection; develops in blood plasma in response to certain antigens
T lymphocytes
T cell
cytotoxic cell
T cell that helps destroy foreign cells or substances (CD8)
B lymphocyte
a kind of lymphocyte that manufactures antibodies
Hodgkin's lymphoma
a type of lymph cancer that generally appears in early adulthood
pathogen
disease-causing agent
thrombocyte
platelets
interleukin
protein produced by T cells; helps regulate immune system
erythrocyte
red blood cell
lymphadenectomy
removal of a lymph node
thymectomy
removal of the thymus gland
splenomyelomalacia
softening of the spleen and bone marrow
leukocyte
white blood cells
lymphocytes
white blood cells made in the bone marrow that are critical to the body's defense against disease and infection
monocyte
associated with engulfing cellular debris, antigen processing
White blood cells
contained in lymph tissue
vaccinations
give acquired active immunity
antitoxins
give acquired passive immunity
immunity
resistance to particular pathogens
lymph node
specialized organ that filters harmful substances from the tissues and assists in the immune response
splenomegaly
spleen enlargement
thymoma
tumor of the thymus
helper cell
T cell that stimulates antibody production/immune response (CD4)
suppressor cell
T cell that suppresses B cells and other immune cells; regulates the amounts of antibody produced
Immunoglobulin A
Transfers immunity from mother to infant in breast milk
non-Hodgkin's lymphoma
a cancer of the lymph nodes with some cells resembling healthy cells and spreading in a diffuse pattern; appears mid-life
interferon
a protein produced by T cells and other cells; destroys disease-causing cells with its antiviral properties; manufactured and given in high doses in immune disorders
lymphocyte
a type of leukocyte; produced from lymphoid stem cells and give rise to B cells, T cells, and natural killer cells; produce antibodies and regulate immune response (specific)
interferon and interleuken
agents of T cells taht destroy disease causing cells
AZT
an AIDS drug that blocks virus growth
infectious mononucleosis
an acute infectious disease caused by the Epstein-Barr virus
anaphylaxis
an allergic reaction; a reaction so severe that it can be life threatening by decreasing blood pressure, affecting breathing, and causing loss of consciousness
lymphadenotomy
an incision into a lymph node
toxanemia
anemia resulting from a poison
antitoxin
antibodies directed against a particular disease or poison; helps produce resistance to a disease or a poison
gamma globulin
antibodies given to prevent or lessen certain diseases
immunoglobulin
antibody
immunoglobulin E
antibody associated with allergic reactions
IgD
antibody important in B-cell division
vaccine
antigen developed from a different organism that causes active immunity in the recipient
antigen
any substance that can provoke an immune response
basophils
associated with hypersensitivity and release histamine
eosinophils
associated with parasitic infection and allergic response
B cells
become plasma cells; produce antibodies (immunoglobulins)
adenocyte
cell of a gland
lymphocele
cystic mass containing lymph
lymphangiectasis
dilation of the lymphatic vessels
neutrophil
engulf bacteria and cellular debris (non-specific)
toxicologist
expert in the science of poisons
lymph
fluid that contains white blood cells and other substances and flows in the lymphatic vessels
splenorrhagia
hemorrhage from a spleen
thymosin
hormone secreted by the thymus gland that aids in distribution of thymocytes and lymphocytes
lymphadenitis
inflammation of a lymph node
sarcoidosis
inflammatory condition that can affect lung function; lesions involving the lymph nodes, lungs, and other organs
phagocytosis
ingestion of foreign substances by specialized cells
natural immunity
inherent resistance (have it at birth) to disease found in a species, race, family group, or certain individuals
vaccination
injection of an antigen from a different organism to cause active immunity
acquired passive immunity
inoculation against disease or poison, using antitoxins or antibodies from or in another person or another species
immunodeficient
lacking in some immune function
T cell
lymphocyte associated with cellular immunity
lymphangiosarcoma
malignancy in the lymphatic vessels
spleen
organ of lymph system that filters and stores blood, removes old red blood cells, and activates lymphocytes
hypersplenism
overactive spleen
lymphoid
resembling lymph
acquired active immunity
resistance to a disease acquired naturally or developed by previous exposure or vaccination
cell-mediated immunity
resistance to disease mediated by T cells
humoral immunity
resistance to disease provided by plasma cells and antibody production
toxiderma
skin disease caused by a poison
microphage
small phagocytic cell that devours foreign substances
thymus gland
soft gland with two lobes that is involved in immune responses; located in the mediastinum
macrophage
special cell that devours foreign substances
macrophages and microphages
special cells that ingest foreign substances
plasma cell
specialized lymphocyte that produces immunoglobulins
antibody
specialized protein that fights disease; immunoglobulin; protein produced by B cells that fights foreign cells
T cells
specialized white blood cells that receive markers in the thymus, are responsible for cellular immunity, and assist with humoral immunity
interstitial fluid
the fluid in the space between tissues
radiation and chemotherapy
used to treat lymphomas
immunization
vaccination