lymphatic and immune system Flashcards
role of lymphatic and immune system
protect the body from pathogens
lymphatic
is more like a filtration system that keeps everything clean and balanced
immune system
is like an army, a defender system that goes to battle with the invading pathogen
four functions of lymphatic system
- recycling extra fluid
- transporting pathogens
- storage of some WBCs
- absorption of nutrients
lymph capillaries
extra fluid passes more easily into this system
lymphatic fluid
the fluid that flows in the lymph capillaries and through the system
lymph nodes
catch invading pathogens
lymphatic vessels empty into
lymphatic trunks
lymphatic trunks empty into
one thoracic duct and right lymphatic duct
spleen
clean up waste and debris in our system
function of the spleen
filters pathogens
remove and destroy old, damaged, or fragile RBCs
thymus function
packed with a type of white blood cells (WBCs) called lymphocytes
antigens
indenting whether the cell is supposed to be in the body or not
antibodies
your body makes proteins that bind to antigens, eventually destroying them
innate immunity
when we are born, already developed.
recognize that something is not you
adaptive immunity
recognize the specific invader
neutrophils
phagocytosis
macrophages
phagocytosis
basophils and mast cells
release chemicals to promote inflammation
natural killer cells (NK cells)
release chemicals to kill cells displaying foreign antigens
T lymphocytes (T cells)
kill pathogens and release chemicals to help with immunity
B lymphocytes (B cells)
produce anti-bodies that allow the body to recognize pathogens
What is an immune system component
white blood cells
cytokines
proteins produced by damaged tissues and WBCs that stimulate the immune response
signs of inflammation
swelling, redness, feel hot
immunodeficiency disorder
under active immune system
hypersensitive reaction
also known as allergy or an allergic reaction
fight harmless antigens
anaphylaxis
histamine release caused vasodilation through your the whole body
active acquired immunization
where your body makes antibodies
passive acquired immunization
where antibodies are injected into your body
adaptive immunity
where the body can recognize the specific invader and know who to respond each time
innate immunity
first line of defence against invading pathogens
lymphocytes
immune cell made of bone marrow
Found in the blood and in lymph tissue
histamine
a chemical found in some of the body’s cells
phagocytosis
an important process for nutrition in unicellular organisms
