Cortez, Janessa: Immune system

immune defenses

adaptive defense system

innate defense system

pathocytes they eat forign invadors

NK cells-can kill cancer and virus infected cells before adaptive immune system in activation

first and second linesof defense (skin, stomach acid, tears mucosae

it is systemic, not restricted to initial site

inhibit spread of invadors and inflammation is the most important mechanism

third line of defense attacks particular foreign substances

recognizes and targets specific antigens

it has memory, they get together and have a stronger attack to antigens

second lone is antimicrobial proteins

anatomy of the lymphatic system

spleen

thymus gland

tonsils

bone marrow

located in the back of mouth/throat

fist size located in the upper left side of abdomen

found behind the stomach

where b cell lymphocytes of the immune system to mature

it produces lymphocytes and antibodies which protect inhaled swalloed foreign bodies

old damaged red blood cells and filters blood out to remove microbes

secretes hormones and is crucial in the production

cellular response

cytotoxic cells defend against infections like cancer, or transplanted cells

t cells are involved in the cell-mediated

b cells and T cells cant be binded to free antigems

lymphocytes that mature in the thymus

t cells recognize and binds to the infected or cancerous cells

clones are formed of the different of T cells

helper t cells alerts and recruits the rest of the immune system

killer T cells are specialized in attacking and killing infected cells by releasing toxic

suprresor T cells release chemical suprresor factor a\to supress the activity

memory t cells provide long term immunaity

also become memory t cells

made in thymus, mature in bone marrow

humoral response

lymphocytes are designed to tell a specific antigen

b cells with specific receotoea bind to a specifc antigen

B and T cells have receptor proteins to bind to antigens

binding event activates lymphocytes

lymphocytes mature in the bone marrow

cloning of b cells is the primary

they defend against infection in body fluids

b cells become plasma cells which produce antibodies

known as antibody mediated immunity

called b cells and are involved

antibody travels throughblood, lympu and mucus destroy pathogen

b cells become long-lived memory cells

destroys pathogens before symptoms start to show up

immune system

adaptive defense system

acid of skin and enzymes and mucin sticky and mucusb

third line of defense attacks particular foriegn substances

natural killer cells can kill cancer and virus infected cells

second line is antimicrobiall proteins and other cells

first line of defense is the external body membrans includes skin and mucosae

memory cells keep tracl of each virus

phagocytes are white blood cells that eat foreign invadors

lymphatic system

production od immune cells like lymphocytes, monocytes and antibodys producing cells of plasma

returns excess fluid and proteins from the tissue that cannot be returned

absorption of fatty acids and subsequent transport of fat

fluid balance

absorption

antigens and antibodies

substances that can mobilize adapative defense

contain derminations can be self antigen

prevent antigens deom binding to receptors on tissue cells

activate mechanisms that destroy virus

most large complex molecules found in the body

can be a complete antigen or hapten

go after extracellular pathogens, they do not invade solid tissue

disorders of the immune system

antigen causes allergic reaction

body is overreacting to forign antigens that are not dangerous

production of autoantibodies

sensitized T cells that destroy body tissues

results when immune system looses abilty to distinguish

immediate hypersensitivity

autoimmunity

qutoimmune disease