Immune System Flashcards
what does a larger zone of inhibition mean
stronger antibacterial properties
should plant extracts show zone of inhibition?
yes because all plant extracts have some type of antibacterial property
should saliva have a zone of inhibition
no because saliva has enzymes that encourage sugar breakdown and bacteria
should sweat have a zone of inhibition
yes, small zone because it has salt which can inhibit bacterial growth
should tears have zone of inhibition
lyes, should have largest zone because they contain lysosomes which are antibacterial agents
tonsils
prevent germs from entering body
thymus
where immature T cells undergo maturation
bone marrow
major blood forming organ, responsible for producing red and white blood cells
leukocytes
another name for white blood cells, repair tissue and defend against pathogens
spleen
filters blood, stores extra red blood cells in case of emergency
lymph nodes
located all around body, filter lymph passing through
erythrocytes
red blood cells, most abundant type of blood cell, transport oxygen and CO2
platelets
small cell fragments, involved in formation of blood clots
neutrophils
defend body against bacterial and fungal infection via phagocytosis
eosinophils
responds to parasitic infections, secretes chemicals that destroy parasites too large to phagocytize
basophils
responsible for inflammatory reactions during immune response by producing histamine and heparin, responsible for allergic reactions
lymphocytes
adaptive immune system, allows body to remember infections and fight them better upon reinfection
monocytes
defends body against pathogens via phagocytosis delivers pieces of pathogens to lymphocyte cells
reticular fibers
mesh-like, allows filtration of lymph system pathogens and debris
3 major types of lymphocytes
B cells, T cells, Killer cells
blood cells that are part of the adaptive immune response
lymphocytes and monocytes
blood cells that are part of the innate immune response
eosinophils, basophils, neutrophils
B cells
secrete antibodies and mature in bone marrow
T cells
bind to antigens and coordinate response
killer cells
kill cells of body that do not display proper MHC class molecules
