Cell mediated immunity

Question 1

what is an antigen

Answer 1

any part of anorganism recognized as non self by the immune sytem and stimulates an immune response usually protiens found on cell membranes of invading cells

Question 2

what is a b lymphocye

Answer 2

they mature in the blood marrow and are associated with humoral immunity that involves antibodies and memory cells

Question 3

what are t lymphocytes

Answer 3

they mature in the thymus gland and are asociated with cell mediated immunity

Question 4

wht do t cells do

Answer 4

they destroy antigen presenting cells

Question 5

what are the t cell response

Answer 5

receptors on a specific helper t cell fit exactly onto the antigen
this attatchment causes the t cell either to divide rapidly by itosis to develop into memory cells
or it may stimulute more phagocytosis
or it may stiulate b cells to secrete antibodies
or it may activate cytotoxic t cells

Question 6

what are cytotoxic t cells

Answer 6

they release preforin which makes holes in the cell surface membrane and the membrane becomes permeable to all substances and cell dies as a result