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Medical Terminology Ch. 10
The Lymphatic System and Immunity
45
Medical
Professional
10/27/2015

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Term
an- (prefix)
Definition
without
Term
immun/o (root)
Definition
immune system
Term
lymphaden/o (root)
Definition
lymph nodes
Term
lymphangi/o (root)
Definition
lymph vessels
Term
lymph/o, lymphat/o (root)
Definition
lymph or lymphatic system
Term
-megaly (suffix)
Definition
enlargement
Term
phag/o (root)
Definition
ingest or engulf
Term
-phylaxis (suffix)
Definition
protection
Term
splen/o (root)
Definition
spleen
Term
thym/o (root)
Definition
thymus
Term
-oid (suffix)
Definition
resembling
Term
tonsill/o (root)
Definition
lymph node, usually palatine tonsil
Term
Peyer's patches (term)
Definition
small bundles of lymphoid tissue on the walls of the small intestine that develop immunity and protect against invading organisms
Term
HLA (abbreviation)
Definition
human leukocyte antigen
Term
SLE (abbreviation)
Definition
systemic lupus erythematosus (usually shortened to lupus)
Term
acquired immunity (term)
Definition
resistance resulting from previous exposure to an infectious agent
Term
antibody (term)
Definition
a molecule generated in specific opposition to an antigen
Term
appendix (term)
Definition
wormlike dead-end projection that is attached to the intestine
Term
artificial immunity (term)
Definition
immunity acquired from a vaccination
Term
autoimmunity (term)
Definition
immunity to oneself
Term
inflammation (term)
Definition
redness and irritation caused by injury or abnormal stimulation by a physical, chemical, or biologic agent
Term
leukocyte (term)
Definition
white blood cell
Term
lymph (term)
Definition
fluid that flows through the lymphatic system
Term
natural immunity (term)
Definition
resistance manifested by an individual who has not been immunized; immunity passed from mother to fetus
Term
neutrophil (term)
Definition
a granulocyte that is the chief phagocytic white blood cell
Term
phagocyte (term)
Definition
white blood cell that clears away pathogens and debris
Term
spleen (term)
Definition
immune system organ that gets rid of damaged red blood cells and reclaims and stores iron
Term
T cell (term)
Definition
cells that make up about 80% of lymphocytes; associated with the thymus
Term
thymus (term)
Definition
immune system gland located behind the sternum
Term
tonsil (term)
Definition
collection of lymph tissue; especially the lingual, pharyngeal and palatine tonsils
Term
anaphylaxis (term)
Definition
life-threatening reaction to a foreign substance; symptoms include blockage of air passages, decreased blood pressure, generalized edema
Term
hemolysis (term)
Definition
change or destruction of red blood cells
Term
Hodgkin's lymphoma (term)
Definition
chronic malignant disease of the lymph nodes
Term
lymphadenitis (term)
Definition
inflammation of a lymph node
Term
lymphadenopathy (term)
Definition
chronic or excessively swollen lymph nodes; any disease of the lymph nodes
Term
lymphangitis (term)
Definition
inflammation of lymph vessels
Term
lymphedema (term)
Definition
swelling of the subcutaneous tissues due to obstruction of lymph vessels or nodes
Term
lymphoma (term)
Definition
tumor of lymph tissue
Term
splenitis (term)
Definition
inflammation of the spleen
Term
systemic lupus erythematosus (term)
Definition
an inflammatory connective disorder with variable features; diffuse erythematous butterfly rash on the face
Term
tonsillitis (term)
Definition
inflammation of a tonsil (commonly the palatine tonsil)
Term
chemotherapy (term)
Definition
treatment of malignancies using chemical agents and drugs
Term
corticosteroids (term)
Definition
hormonelike preparations used as anti-inflammatory agents
Term
immunization (term)
Definition
process by which resistance to an infectious disease is induced
Term
splenorrhaphy (term)
Definition
suture of a ruptured spleen
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