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40 terms

Unit 11 Lymphatic System

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immunosuppression
treatment used to interfere with the ability of the immune system to respond to stimulation by antigens
immunotherapy
a treatment of disease either by enhancing or repressing the immune response
infectious mononucleosis
caused by the epstein-barr virus, is characterized by fever, a sore throat, and enlarged lymph nodes
infiltrating ductal carcinoma
also known as IDC, starts in the milk duct, breaks through the wall of that duct, and invades fatty breast tissue; accounts for the majority of all breast cancers
infiltrating lobular carcinoma
also known as ILC, is cancer that starts in the milk glands (lobules), breaks through the wall of that gland ad invades that fatty tissue of the breast
inguinal lymph nodes
lymph nodes located in the inguinal (groin) area of the lower abdomen
interferon
is produced by the t cells, is a family of proteins released by cells when invaded by a virus; causes noninfected cells to form an antiviral protein that slows or stops viral multiplication
kaposi's sarcoma
also known as KS, is an opportunistic infection frequently associated with HIV; may affect the skin, mucous membranes, lymph nodes, and internal organs
lumpectomy
the surgical removal of only the cancerous tissue and a margin (rim) of normal tissue
lymphadenitis
also known as swollen glands, is an inflammation of the lymph nodes
lymphadenopathy
any disease process usually involving enlargement of the lymph nodes
lymphangiogram
a radiographic study of the lymphatic vessels and nodes with the use of a contrast medium to make these structures visible
lymphangioma
a benign abnormal collection of lymphatic vessels forming a mass
lymphedema
an abnormal accumulation of fluid primarily in the legs and ankles that occurs when veins or lymph vessels do not drain properly
lymphocytes
are WBC's that specialize so they can attack specific microorganims; formed in bone marrow and undergo further maturation and differentiation in lymphatic tissue throughout the body including lymph nodes, spleen, thymus, tonsils, and peyer's patches; two major classes are b cells, and t cells
lymphokines
are produced by the t cells, direct the immune response by signaling between the cells of the immune system; attract macrophages to the infected site and prepare them to attack
lymphoma
a general term applied to malignancies that develop in the lymphatic system
macrophage
a type of phagocyte, protects the body by ingesting (eating) invading cells by interacting with the other cells of the immune system
metastasis
the new cancer site that results from the spreading process
metastasize
the verb that describes the process by which cancer spreads from one place to another
moniliasis
an infection of the skin or mucous membranes caused by the pathogenic yeast Candida albicans; generally localized in the mouth or the vagina
myoma
a benign tumor composed of muscle tissue
myosarcoma
a malignant tumor derived from muscle tissue
neoplasm
also known as a tumor, is a new abd abnormal tissue formation
neuroblastoma
a sarcoma of nervous system origin
phagocyte
a WBC witht he ability to ingest (eat) and destroy substances such as cell debris, dust, pollen, and pathogens
phagocytosis
process in which phagocytes engulf and digest microorganisms and cellular debris
rabies
an acute viral infection that may be transmitted to humans by the blood, tissue, or saliva of an infected animal
retinoblastoma
a malignant tumor of childhood arising from cells of the retina of the eye and usually occuring before the third year of life
rickettsia
a small bacterium that lives in lice, fleas, ticks, and mites; they transmit the infection to humans; rocky mountain spotted fever
rubella
also known as german measles or 3-day measles, is a viral infection characterized by fever and a diffuse, fine, red rash
sarcoma
a malignant tumor that arises from connective tissue
spirochetes
spiral-shaped bacteria that have flexible walls and are capable of movement; lyme disease
splenomegaly
an enlargement of the spleen
splenorrhagia
bleeding from the spleen
staphylococci
bacteria that form irregular groups or clusters; endocarditis, pneumonia, and some skin infections
streptococci
bacteria that form a chain; pharyngitis, also known as strep throat
teletherapy
radiation therapy administered at a distance from the body
thymus
located superior to (above) the heart; is composed largely of lymphatic tissue; plays an important role in the endocrine and immune systems
western blot test
detects the prescense of specific viral proteins, produces more accurate results