MICROANATOMY

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BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

LYMPH NODES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells that are descendants of activated T and B cells produced during an initial immune response, which exist in the body for years, enabling it to respond quickly to future infections, are known as ____
A
memory cells
B
killer B’s
C
suppressor T cells
D
killer T cells
Explanation: 

Detailed explanation-1: -TH1 cells activate the microbicidal properties of macrophages, and induce B cells to make IgG antibodies that are very effective at opsonizing extracellular pathogens for uptake by phagocytic cells. TH2 cells initiate the humoral immune response by activating naive antigen-specific B cells to produce IgM antibodies.

Detailed explanation-2: -Types of T-cells Helper T-cells stimulate B-cells to make antibodies and help killer cells develop. Killer T-cells or cytotoxic T-cells directly kill cells that have already been infected by a foreign invader.

Detailed explanation-3: -T cells can wipe out infected or cancerous cells. They also direct the immune response by helping B lymphocytes to eliminate invading pathogens. B cells create antibodies. B lymphocytes, also called B cells, create a type of protein called an antibody.

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