Question

Do T cells comprise 90% of the circulating lymphocytes?

Answer 1

Lymphocytes in human circulatingblood are approximately 80 to 90percent T cells, shown in Figure 1, and 10 to 20 percent B cells. Recall that theT cells are involved in the cell-mediated immune response, whereas B cells are part of the humoral immune response.

Answer 2

Answer:

T cells comprise 51% to 88% of circulating lymphocytes. T cells in secondary lymphatic organs or in the circulating blood eventually come in contact with antigens. This results in cell activation and the production of either memory cells or effector T cells, or both (Figure 9.20).