What is a T4 lymphocyte?
Answers
T4 lymphocytes, also known as "Helper cells", are a type of white blood cell that orchestrate the immune response and enhance the activities of the killer T-cells (those that destroy pathogens) and B-cells (antibody and immunoglobulin producers).
⇒ "Lymphocytes" can be defined as the the smallest leucocytes, slightly larger than the Red Blood Cells (RBCs).
⇒ Extra Information :-
⇒ Lymphocytes are small, non-phagocytic cells with round, dense nuclei and a small amount of cytoplasm.
⇒ Lymphocytes are the second most common leucocytes in blood.
⇒ Lymphocytes make up about (20-30)% of White Blood Cells (WBCs).
⇒ There are two functionally distinct types: "T-lymphocytes" and "B-lymphocytes".
⇒ Lymphocytes play the central role in all immunological defence mechanisms of the body.