M1: immune system and antigens

Question 1

define immunity

Answer 1

being resistant to infection

Question 2

phagocytosis

Answer 2

cells eat other cells

Question 3

adaptive immunity

Answer 3

A type of resistance characterized by
specificity for each individual pathogen, or
microbial agent, and the ability to remember
a prior exposure

Question 4

innate immunity

Answer 4

natural immunity
no memory, nonspecific

Question 5

antigen

Answer 5

foreign substances that induce an immune response
-on rbc

Question 6

antibodies

Answer 6

in plasma/serum

Question 7

cells of the innate system

Answer 7

neutrophils, eosinophils, basophils, monocytes, lymphocytes

Question 8

neutrophil function

Answer 8

first responder to infection; phagocytosis

Question 9

eosinophil function

Answer 9

kill parasites

Question 10

basophil function

Answer 10

induce and maintain allergic reactions

Question 11

monocyte function

Answer 11

phagocytosis

Question 12

tissue cells

Answer 12

macrophages, mast cells, dendritic cells

Question 13

macrophages function

Answer 13

phagocytosis

Question 14

mast cell function

Answer 14

playa role in allergic reactions
the ability to remember
a prior exposure

Question 15

dendritic cell

Answer 15

the most potent phagocytic cell and most effective antigen presenting cell

Question 16

cells of the adaptive system

Answer 16

lymphocytes: B cells, T cells, NK cells

Question 17

B cells function

Answer 17

produce antibodies

Question 18

t cells function

Answer 18

produce cytokines to contribute to immunity by stimulating b cells to product antibodies

Question 19

NK cells (natural killer)

Answer 19

kill target cells without any prior exposure

Question 20

organs of the immune system

Answer 20

bone marrow, thymus, spleen, lymoph nodes

Question 21

bone marrow function

Answer 21

maturation of b and nk cells

Question 22

thymus function

Answer 22

maturation of t cells

Question 23

spleen

Answer 23

filters blood

Question 24

lymph nodes

Answer 24

place where t cells, b cells and antigens occurs

Question 25

explain how some antigens are immunogens

Answer 25

some antigens are too small or too difficult to bind to be detected by the immune system

Question 26

discuss the features of antigens that determines immunogenicity

Answer 26

size-the bigger the better
foreignness- the more different the better
dosage- the more, the better
route of admin.- in through the skin is better than on the skin

Question 27

haptens

Answer 27

a nonimmunogenic must combine with a carrier to become larger so it can stimulate a response