T-cells Flashcards
1
Q
What is a T-cell?
A
A type of white blood cell
Has receptor proteins on surface that bind to complementary antigens presented to it by phagocytes. This activates the T-cell
2
Q
What are Helper T-cells?
A
Release chemical signals that activate and stimulate phagocytes
Also activate B-cells, which secrete antibodies
3
Q
What are Cytotoxic T-cells?
A
Kill abnormal and foreign cells
