A&P Ch6 Lymphatic and Immune System Vocab

the disease process that occurs following infection with the human immunodefieciency virus (HIV)

a naturally occurring hormone that also may be given as a cardiac drug and has alpha and beta effects. Also called epinephrine

a severe reaction to an antigen that occurs after sensitization from a prior exposure to the same antigen

one of two types of specific immunity that wxist in the body, it is primarily mediated by B cells.

a substance foriegn to the body

a large collection of lymph nodes located in the axilla

a white blood cell that may play a role following infection of various areas in the body

a protein found on the surface of T helper cells that is adversely affected by exposure to HIV

one of two types of specific immunity that exist in the body, it is primarily mediated by T cells

a large collection of lymph nodes located in the neck

the process of the migration of leukocytes in the blood toward the areas of bacterial invasion, foreign body, or infection

tissue with no clear boundary that blends with surrounding tissues and contains lymphocytes and other cells

escherichia coli, a normal flora or bacteria found in the gastrointestinal tract that aids in digestion and absorption of food, as well as metabolization of waste productss

a leukocyte that may play a role following infection in various areas in the body

a condition that is potentially fatal to a fetus that occurs during late pregnancy or delivery when an Rh negative mother is exposed to small amount of Rh positive fetal blood. Antibodies to Rh antigens may be produced by the mother and enter the fetal circulation and destroy the fetus' red blood cells

a small molecule that will not evoke a specific immune response unless it is combined with other serum proteins, in which case, a severe reaction may occur

a virus that adversely affects a protein on T helper cells, the CD4 antigen, by causing it to appear as an antigen to healthy cells, resulting in destruction of T helper cells and the inability to fight infections and certain types of tumors

the body system that is responsible for providing immunity

the body's ability to resist damage from foreign substances, microscopic organisms, or harmful chemicals

a disease that may be transmitted from one person to another via some type of specific microscopic organism, such as a bacteria or virus

a response of the immune system that results in the influx of cells and other chemicals to fight a foreign challenge

a large collection of lymph nodes located in the groin

one of three sets of lymphatic organs that comprise the tonsils, they are located on the posterior margin of the tongue and help protect the body from bacteria introduced into the mouth and nose

a thin plasma-like liquid fromed from interstitial or extracellular fluid that bathes the tissues of the body

round or bean-shaped structures interspersed along the course of the lymph vessels, which filter the lymph and serve as a source of lymphocytes

tissue that is denser than diffuse lymphatic tissue, found in the loose connective tissue of the digestive, respiratory, and urinary systems

thin-walled vessels through which lymph circulates through the body, they travel close to the major arteries and veins

inflammation fo a lymph node caused by infection

any swelling of the lymph nodes, with or without pain

an infection that spreads beyond the local area into a lymphatic vessel causing red streaks to run from the infected area proximally

vessels of the lymphatic system that carry fluid away from the tissues

one of two great lymph vessels, it empties into the subclavian vein

a passive circulatory system that transports a plasma-like liquid called lymph, a thin fluid that bathes the tissues of the body

a type of white blood cell that helps fight infection and provide immunity

complex proteins produced by T effector cells that recruit mast cells and other nonspecific inflammatory mediators to aid in destruction of antigens

the breakdown of a foreign cell caused, in some cases, when T effector cells bind to the foreign cell

cells that leave the bloodstream and enter diseased tissues after the neutrophils and are responsible for the later stages of fighting infection, including the disposal of dead bacteria

a large white blood cell that mediates allergic reactions and may play a role following infection of various areas of the body

the spreading of a disease from one part of the body to another, especially with may forms of cancer

an organism of microscopic size

usually the first cells to enter infected tissues, they ingest bacteria through phagocytosis

an immune response that is predictable each time the body is exposed to a particular challenge

bacteria found in certain sites in the body, such as the gastrointestinal tract and oral and nasal cavities that help maintain homeostasis

one of three sets of lymphatic organs that comprise the tonsils, they are located in the back of the throat, on each side of the posterior opening of the oral cavity, and help protect the body from bacteria introduced into the mouth and nose

the process of ingesting and destroying foreign matter by certain types of leukocytes

one of three sets of lymphatic organs that comprise the tonsils, they are located near the internal opening of the nasal cavity and help protect the body from bacteria introduced into the mouth and nose. also called adenoids

the immune response to a given substance that is faster and stronger after each subsequent exposure

an organ of the lymphatic system that is located in the left upper quadrant of the abdomen and consists of two types of lymph tissue that are associated with drainage of this organ

surgical removal of the spleen

the cells that carry out most of the cell-mediated immune functions by seeking and destroying foreign materials, such as viruses, fungi, bacteria and particles

cells that aid the T effector cells in carrying out cell-mediated immune functions

the form into which T cells differentiate when activate by an antigen. this remains within the body, ready to respond to a second challenge

cells that suppress the actions of the T effector cells by limiting the specific immune response

one of two great lymph vessels, it empties into the superior vena cava

a triangular-shaped gland located below the sternum in the superior mediastinum that produces lymphocytes

three sets of lymphatic organs that are located in the back of the throat and nasopharynx and protect the body from bacteria introduced into the mouth and nose