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Chapter 10
Lymphatic System and Immunity
61
Medical
Professional
11/10/2010

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Term
acquired immunity
Definition
resistance resulting from previous exposure to an infectious agent
Term
allergen
Definition
an allergy-producing substance
Term
antibody
Definition
a molecule generated in specific opposition to an antigen
Term
antigen
Definition
substance that induces sensitivity or an immune response in the form of antibodies
Term
appendix
Definition
worm-like dead-end projection that is attached to the intestine
Term
artificial immunity
Definition
immunization; immunity acquired from a vaccination
Term
autoimmunity
Definition
literally, immune to oneself
Term
inflammation
Definition
redness and irritation caused by injury or abnormal stimulation by a physical, chemical, or biologic agent
Term
leukocyte
Definition
white blood cell
Term
lymph
Definition
fluid that flows through the lymphatic system
Term
lymphatic system
Definition
collectively, the vessels, nodes, and capillaries that carry the lymph and its disease-fighting cells to the areas in which they are needed
Term
lymphocyte
Definition
white blood cell in the lymphatic system
Term
macrophage
Definition
large phagocyte
Term
microphage
Definition
small phagocyte
Term
monocyte
Definition
a type of white blood cell
Term
natural immunity
Definition
resistance manifested by an individual who has not been immunized; immunity passed on from mother to fetus
Term
neutrophil
Definition
a granulocyte that is the chief phagocytic white blood cell
Term
pathogen
Definition
substance that produces disease
Term
phagocyte
Definition
white blood cell that clears away pathogens and debris
Term
phagocytosis
Definition
process of white blood cells
Term
reaction
Definition
an action of an antibody on a specific antigen; also, in reference to immune responses, an abnormal or unwanted reaction
Term
spleen
Definition
immune system organ that gets rid of damaged red blood cells and reclaims and stores iron
Term
T cell
Definition
cells that make up about 80% of lymphocytes; the T denotes their work with the thymus
Term
thymus
Definition
immune system gland located behind the sternum
Term
tonsil
Definition
collection of lymph tissue; in common understanding, the lingual, pharyngeal, and especially the palatine
Term
anaphylaxis
Definition
life-threatening reaction to a foreign substance; symptoms include blockage of air passages, decreased blood pressure, and generalized edema
Term
hemolysis
Definition
change or destruction of red blood cells
Term
Hodgkin lymphoma
Definition
chronic malignant disease of the lymph nodes
Term
immunodeficiency
Definition
impairment of the immune system
Term
lymphadenitis
Definition
inflammation of a lymph node or nodes
Term
lymphadenopathy
Definition
chronic or excessively swollen lymph nodes; any disease of the lymph nodes
Term
lymphangitis
Definition
inflammation of lymph vessels
Term
lymphatitis
Definition
inflammation of the lymph vessels or nodes
Term
lymphedema
Definition
swelling of the subcutaneous tissues due to obstraction of lymph vessels or nodes
Term
lymphoma
Definition
tumor of lymph tissue
Term
lymphopathy
Definition
disease of the lymph vessels or nodes
Term
splenitis
Definition
inflammation of the spleen
Term
splenomegaly
Definition
enlargement of the spleen
Term
splenopathy
Definition
any disease of the spleen
Term
systemic lupus erythematosus
Definition
an inflammatory connective tissue disorder with variable features; diffuse erythematous (red) butterfly rash on face
Term
thymitis
Definition
inflammation of the thymus
Term
tonsillitis
Definition
inflammation of a tonsil (commonly the palatine tonsil)
Term
antiviral
Definition
drugs used to treat various viral infections or conditions
Term
chemotherapy
Definition
treatment of malignancies using chemical agents and drugs (usually reserved for treatment of cancer)
Term
corticosteroids
Definition
hormone-like preparations used as anti-inflammatory agents; topical agents used ofr their immunosuppressive and anti-inflammatory properties
Term
immunization
Definition
process by which resistance to an infectious disease is induced
Term
immunosuppressant
Definition
something that interferes with the immune system
Term
lymphangiography
Definition
radiography of the lymph vessels
Term
allergist
Definition
a medical practitioner who specializes in the diagnosis and treatment of allergies
Term
hematologist
Definition
a medical practitioner who specializes in the diagnosis and treatment of blood disorders
Term
immunologist
Definition
a medical practitioner specializing in the immune system
Term
immunology
Definition
the medical specialty dealing with the immune system
Term
oncologist
Definition
a medical practitioner who specializes in the diagnosis and treatment of malignant tumors
Term
lymphadenectomy
Definition
excision of lymph nodes
Term
lymphangiectomy
Definition
excision of a lymph vessel
Term
lymphangiotomy
Definition
incision of a lymph vessel
Term
splenectomy
Definition
excision of the spleen
Term
splenorrhaphy
Definition
suture of a ruptured spleen
Term
splenotomy
Definition
incision of the spleen
Term
thymectomy
Definition
excision of the thymus
Term
tonsillectomy
Definition
excision of a tonsil
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