Lecture 20 Flashcards
Strengths of third line defenses
Diverse- can respond to virtually any antigen
Specific- able to recognize subtle differences between self and non-self + self and altered self
Shortcomings of third line defense
Acquired- not present at birth
Slow-primary response slow and weak compared to a innate response then subsequent secondary stronger responses to the pathogen
Substances that can induce acquired immunity=
Antigen
Are third line defenses fast
No
Tx of snake, spider or other venomous animal bites with antivenin, antiserum produced by immunizing animals with inactivated toxins is an example of ________ acquisition of specific immunity.
Artificial passive
The B lymphocyte population in your lymph nodes is diverse because each member of each population has a different antigen _______.
Receptor
What type of protein can plasma cells express
Antibody
What type of protein can natural killer cell (NK) express
KIR
What type of protein can Helper T cell express
CD4
What type of protein can dendritic cells express
MHC-II
Primary function of cytotoxic T cells
Kill virus infected cells
Primary function of plasma cells
Secrete antibody
Primary function of natural killer cell
Kill cells lacking MHC
Primary function of helper T cells
Help with antibody production
Primary function of dendritic cells
Antigen presentation
