GENERAL HISTOLOGY

Detailed explanation-1: -Each B cell produces a single species of antibody, each with a unique antigen-binding site. When a naïve or memory B cell is activated by antigen (with the aid of a helper T cell), it proliferates and differentiates into an antibody-secreting effector cell.

Detailed explanation-2: -Typically, the events of B-cell activation in vivo take place in specialized secondary lymphoid tissues such as the lymph nodes to increase the likelihood of a B cell ‘finding’ its cognate antigen [5]. Lymph nodes are supplied with lymphatic fluid through the afferent vessel.

Detailed explanation-3: -Lymphocytes are one of the main types of immune cells. Lymphocytes are divided mainly into B and T cells. B lymphocytes produce antibodies-proteins (gamma globulins) that recognize foreign substances (antigen) and attach themselves to them.