APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -T lymphocytes develop from a common lymphoid progenitor in the bone marrow that also gives rise to B lymphocytes, but those progeny destined to give rise to T cells leave the bone marrow and migrate to the thymus (see Fig. 7.2). This is the reason they are called thymus-dependent (T) lymphocytes or T cells.

Detailed explanation-2: -A progenitor cell is a biological cell that can differentiate into a specific cell type. Stem cells and progenitor cells have this ability in common. However, stem cells are less specified than progenitor cells. Progenitor cells can only differentiate into their “target” cell type.

Detailed explanation-3: -T-lymphocytes or T-cells, do not themselves produce antibodies. They help B-cells in the process of recognition of pathogen proteins. This, in turn, helps B-cells produce antibodies that can recognize and bind to specific proteins produced by the infectious agent.