Immune response Flashcards
1
Q
Describe Primary immune response
A
Activation of B or T cells during the first encounter with an antigen
Antibodies (IgM, then IgG) are released into blood; help destroy antigens for several weeks
2
Q
What do some B cells remain as in primary immune response
A
memory B cells, remaining dormant at the time, but remembering the antigen
3
Q
Describe Secondary Immune response
A
Rapid, long-lasting, response to a subsequent encounter with the same antigen; accomplished by memory B cells and memory cytotoxic T cells
4
Q
What do memory B cells do in secondary immune response?
A
proliferate, antibodies appear in 1-2 days, and remain for months to years
5
Q
How can Memory B cells live for?
A
many years, providing long-term immunity
