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adenocarcinoma
malignant tumor composed of glandular tissue
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adenoiditis
inflammation of adenoid
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aneurysmectomy
surgical removal of an aneursym
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angiogengesis
process through which a tumor supports its growth by creating its own blood supply
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anomaly
deviated from what's considered normal
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antibody
a disease fighting protein created by the immune system
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antifungal
agent that destroys or inhibits growth of fungi
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antigen
substance that the body regards being as foreign
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antibiotics
- medication capable of inhibiting growth
- killing pathogenic bacterial microorganism
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antiviral drug
used to treat viral infections and to provide temporary immunity
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bactericide
substance that causes death of bacteria
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bacteriostatic
an agent that shows or stops growth of bacteria
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complement
- a group of proteins that normally circulates in the blood in inactive form.
- the ability of antibodies to ward off pathogens by combining with them to dissolve and remove foreign cells or substance
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hemolytic
destroying old RBCs and releasing hemoglobin for reuse
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herpes zoster (shingles)
- an acute viral infection
- causes painful skin eruptions that follow underlying route of an inflamed nerve
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interferon (T cell)
- produced in response to the presence of antigens (i.e. virus or tumor)
- it slows down and/or prevents the production of antigens by signaling other cells
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lumpectomy
surgical removal of only cancerous tissue within normal tissue
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lymph node
- contains specialized lymphocytes capable of destroying pathogens
- there are three types: cervical, auxillary, and inguinal
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lymphadenitis
inflammation of the lymph nodes
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lymphadenopathy
disease process affecting a lymph node(s)
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lymphedema
abnormal swelling of tissues due to accumulation of lymph
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primary lymphedema
- a hereditary condition that develops with swelling beginning in the feet and progressing into the ankles.
- usually occurs in females during puberty
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secondary lymphedema
caused by damage to lymphatic vessels that is affected by cancer treatment, surgery, trauma, or burns
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lymphocytes
- a type of leukocyte
- identifies pathogens and produces specific antibodies specially for the targeted pathogens
- three types: natural killer cells, B cells, and T cells.
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macrophage
a phagocytic cell that surrounds and engulfs pathogens.
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measles
- an acute highly contagious infection transmitted by respirating droplets of rubeola virus
- can cause sensitivity to light
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metastasis
new cancer site that results from spreading
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metastasize
cancer spreads from one place to another
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mumps
an acute viral infection that is characterized by causing swelling of parotid glands (salivary gland)
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plasma cells
- develop from B cells
- secrete a large volume of antibodies code to destroy specific antigens
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spirochete
long spiral shaped bacteria that have flexible walls
**parasitic worms found in dog poop**
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splenomegaly
an enlargement of the spleen due to bleeding from an injury, a disease, or abnormal condition of the immune system
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staphylococci
- irregular groups or clusters resembling grapes
- reside on the skin and mucous membrane
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streptococci
- form a chain
- many are considered harmless but is responsible for strept throat and meningitis
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varicella
- caused by herpe virus
- also known as chicken pox
- its high contagious causing fevers, rashes consisting of itchy blisters
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what are the three functions of the lymphatic system?
- absorption of fats and fat soluble vitamins from the small intestine
- remove waste from tissues
- assist the immune system (tonsils, lymph nodes, thymus and spleen)
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the lymphatic system is known as the _______ ___.
SECONDARY CIRCULATION for the transportation of lymph throughout the body.
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lymph
- a clear watery fluid which transports proteins and waste products between cells
- it destroys bacteria and other pathogens in tissues
- filtered by lymph nodes along lymphatic vessels found throughout the body
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does lymph flow in one direction?
yes! It flows in one direction to the venous circulation from the help of muscular movement and blood vessels.
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interstitial fluid
- is plasma from arterial blood that flows out of the capillaries into spaces between the cells
- transports food, oxygen, and hormones
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how much interstitial fluid is absorbed?
- 90% is reabsorbed back into the capillaries returning to venous circulation
- 10% is lymph which is NOT absorbed
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lymphatic capillaries
microscopic and blind ended tubes near the body surface
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lymphatic vessels
- found deep within the tissues
- have valves to prevent back flow
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right lymphatic duct
- collects lymph from the RIGHT side of the head/neck, the URQ, and right arm.
- drains lymph into the RIGHT subclavian vein
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thoracic duct
- is considered the LARGEST lymphatic vessel in the body.
- collects lymph from the LEFT side of head/neck, ULQ, entire lower portion of the trunk, and both legs.
- drains into the LEFT sublclavian vein
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tonsils
- three masses of lympoid tissue that form a protective ring around the back of the nose and upper throat.
- prevents pathogens from entering through the nose and mouth
- three types: adenoids, palatine, and lingual tonsils.
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adenoid tonsils (nasopharyngeal)
located in the nasopharynx
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palatine
located on right and left side of the throat area which is visible to the eye.
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lingual tonsils
located at the base of the tongue.
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thymus
- location: superior to the heart
- composed of lympoid tissue
- secretes a hormone that stimulates the maturation of lymphocytes into T cells
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spleen
- a sac like mass of lymphoid tissue in the LUQ of the abdomen
- filters MO and other foreign material from the blood
- form lymphocytes and monocytes
- HEMOLYTIC PROCESS; breakdown of old RBCs and release their hemoglobin for reuse.
- stores extra RBCs and maintains balance between blood plasma and cells
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peyer's patches
- found in the wall of the ileum (portion of small intestine)
- lymphoid tissue
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appendix
- found in the lower portion of the cecum (lrg intestine)
- it provides protection against invaders through the digestive system.
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natural killer cells
- a type of lymphocyte
- kills cancer cells and viral infected cells
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B cells
- a type of lymphocyte
- produce antibodies that are most effective to bacteria and viruses that circulate in the blood.
- destroys pathogens by confrontation with a code which then transform the B cell into plasma
- mature into plasma cells
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T cells
- a type of lymphocyte
- play an important role in cell-mediated immunity
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what is a lacteal?
specialized structures (villi) of the lymphatic system that absorbs fats that cannot be transported into the bloodstream.
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describe the immune system's first line of defense
- intact skin with acid mantle; prevents bacteria from harboring on/into the skin.
- respiratory system; traps foreign matter into nose hairs and mucous membrane lining.
- digestive system; uses acids and enzymes produced by the stomach to destroy consumed invaders.
- lymphatic system and WBCs work together to attack and destroy pathogens
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macrophage
large cell that eats foreign matter
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cytomegalovirus (CMV)
large herpes type virus that is commonly found in humans that can cause a variety of disease.
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neoplasm
abnormal formation of cells in the tissue
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benign
not life threatening; not cancerous
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malignant
harmful and capable of spreading; potentially life threatening
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what are some substances that control infection?
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what are some medications that control infection?
- bacteriostatic: inhibits the growth of bacteria
- antiviral
- antifungal
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antigen-antibody reaction
- involves binding antigens to antibodies
- also known as immune reaction
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tolerance
an acquired unresponsiveness to a specific antigen
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immunoglobulin
- binds with specific antigens in the antigen-antibody response.
- there are 5 types.
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natural immunity VS. acquired immunity
- natural immunity:
- also known as passive immunity
- it is the resistance to a disease present without the administration of an antigen or exposure to a disease.
acquired immunity: obtained by having a contagious disease then receiving immunization against it for protection. i.e. vaccine
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bioimpedance spectroscopy
a noninvasive method of Dx lymphedema
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systemic reaction
- also known as anaphylatic shock
- a severe response to an allergen
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HIV- human immunodeficiency virus
a bloodborne infection in which the virus damages or kills the T cells of the immune system.
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opportunistic infection
- caused by a pathogen that does not normally produce an illness in health humans
- example: kaposi's sarcoma
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AIDS- acquired immunodeficiency syndrome
most advanced form and fatal stage of HIV
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immunosuppression
Tx to repress or interfere with the ability of the immune system to respond to the stimulation of antigens.
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immunosuppressant
- a substance that prevents or reduces the body's normal immune response.
- administered to transplant recipients and those who have autoimmune disorders.
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corticosteriod drug
hormone-like preparation given primarily as an anti-inflammatory and as an immunosuppressant.
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cytotoxic drug
- a medication that kills or damages cells.
- used as an immunosuppressant.
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