Question

Which cell is involved in defence mechanism
of the body​

Answer 1

Answer:

Explanation:

T lymphocytes are primarily responsible for cellular immunity. Stem cells continuously migrate from the bone marrow to the thymus gland, where they develop into T cells. By spending time in the thymus, these cells are programmed to become T cells rather than Page 27 antibody producing B lymphocytes.

Answer 2

Answer:

Myeloid cells: These give rise to red blood cells, platelets, and the cells of the innate immune system. Lymphoid cells: These give rise to cells essential to adaptive immunity: T-lymphocytes, B-lymphocytes, and natural killer cells.