Specific Immune Response: T-Lymphocytes Flashcards

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1
Q

How are T-lymphocytes activated in phagocytosis?

A

phagocyte presents pathogens antigen on its cell membrane (antigen presenting cell)

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2
Q

What are the three types of T-lymphocytes?

A

T-helper cells - release interleukins which activated T-killer cells and B-lymphocytes
T-killer cells - kill pathogens
T-regulator cells - stop T-killer cells from destroying other WBC’s e.g. antigen presenting cells

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3
Q

What does each type of T-cell have?

A

different protein receptor which is complimentary to a specific antigen

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4
Q

What is clonal selection?

A

only T-cells (or B-cells) that bind to complementary antigens
will divide and reproduce

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5
Q

What is clonal expansion?

A

T-cell or B-cell that is selected divides by mitosis

to make many clones of itself - will have complimentary protein to antigen

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