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Body Sys2-Lymph Path

Medical Terminology

TermDefinition
immunodeficiency an immune disorder characterized by a weakened immune system
pathogen a disease-causing microorganism or agent, such as a virus or bacterium
opportunistic infection an infection that takes advantage of reduced immune defenses
inflammation the immune system’s response to injured or damaged cells, which results in redness, heat, swelling, and pain
allergy an immune response to a normally harmless environmental substance
allergen a substance that can trigger an allergy
rash a change in skin color, texture, or overall appearance
hives a rash characterized by red, itchy, slightly elevated patches on the skin that can range in size and appear anywhere on the body as a result of an allergy
anaphylaxis a potentially fatal allergic reaction with hives, throat swelling, and low blood pressure
asthma a condition characterized by abnormal sensitivity of the airways to allergens, resulting in airway inflammation and narrowing, wheezing, coughing, and shortness of breath
hay fever also called seasonal allergies, it consists of runny nose, itchy eyes, and sneezing
lymphedema swelling caused by the build-up of lymph in the tissues, caused by a variety of conditions
adenoiditis inflammation of an adenoid
tonsillitis enlargement of the spleen, which can be caused by a variety of conditions, including infections or cancer
retrovirus a virus group that copies the host cell’s RNA
human immunodeficiency virus (HIV) a virus that infects cells that are necessary for the proper functioning of the immune system
acquired immune deficiency syndrome (AIDS) a disease caused by HIV in which the immune system functions so poorly that a person is vulnerable to a variety of infections and cancers
severe combined immunodeficiency (SCID) a severe, genetic impairment of the immune system
autoimmune disease an immune system disease characterized by a breakdown in the system’s ability to differentiate between self and nonself tissues that causes the system to mistakenly attack tissues of the body
arthritis inflammation of a joint
autoimmune arthritis a type of arthritis caused by the immune system attacking joint tissues
rheumatoid arthritis (RA) an autoimmune disease of unknown cause that typically affects the small joints in the hands, feet, and neck
multiple sclerosis (MS) an autoimmune disorder in which the immune system attacks tissues in the brain and spinal cord
celiac disease an autoimmune disorder triggered by dietary exposure to a protein found in wheat and characterized by intestinal symptoms and poor absorption of nutrients
myasthenia gravis an autoimmune disease of unknown cause that causes muscle weakness and fatigue
Grave’s disease an autoimmune disorder of unknown cause that leads to overactivity of the thyroid gland
systemic lupus erythematosus (SLE) also known as lupus, an autoimmune disorder that can damage many organs, including the heart, lungs, skin, brain, and joints
node biopsy a diagnostic procedure in which lymph node cells are surgically removed from a patient and examined for the presence of disease
bone marrow transplant a procedure in which marrow from a healthy donor is injected into the patient’s marrow
tonsillectomy the surgical removal of the tonsils
thymectomy the surgical removal of the thymus, for example as part of the treatment for myasthenia gravis
splenectomy the surgical removal of the spleen
chemotherapy the use of chemical agents to treat diseases, such as cancer
radiation therapy drugs that can slow the growth of retroviruses, such as HIV
desensitization treatments shots given by a doctor to try to train the immune system not to react to certain allergens
immunization the introduction of a foreign substance, such as a harmless part of a flu virus, to provoke acquired immunity
immunosuppressant a medication that reduces the immune response
neoplasm an abnormal growth of cells that may or may not form a tumor and may or may not be malignant
tumor a swelling or an abnormal mass of tissue that may be either malignant or benign
cancer a condition in which cells multiply and grow in an unregulated fashion, invading nearby tissues and sometimes spreading to distant parts of the body
leukemia a group of cancers of the blood or bone marrow in which an abnormally large quantity of white blood cells is produced
lymphoma a group of cancers in which either T-cells or B-cells multiply in an unregulated fashion, causing tumors
Hodgkin’s disease a type of lymphoma that can often be successfully treated with a combination of chemotherapy, radiation therapy, and bone marrow transplant
Created by: rleroux