IMMUNOLOGY

Detailed explanation-1: -B cell or B lymphocyte (bursa-derived cells) is a key player of the adaptive immune response that is responsible for humoral immunity in mammals. B-cell production in humans is a lifelong process that starts in the fetal liver intrauterine and bone marrow after birth. Their development is from hematopoietic stem cells.

Detailed explanation-2: -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).

Detailed explanation-3: -The B Cells have the ability to transform into plasmocytes and are responsible for producing antibodies (Abs). Thus, humoral immunity depends on the B Cells while cell immunity depends on the T Cells.

Detailed explanation-4: -A B lymphocyte is a type of white blood cell that develops in the bone marrow and makes antibodies.