PATHOLOGY

Detailed explanation-1: -Memory cells-Memory cells remember antigens that have already attacked the body. They help the body to fight off any new attacks by a specific antigen. How do we get immunity? The immune system is very smart and can adapt to new infections.

Detailed explanation-2: -Memory B cells have B cell receptors (BCRs) on their cell membrane, identical to the one on their parent cell, that allow them to recognize antigen and mount a specific antibody response.

Detailed explanation-3: -Instead, memory B cells are defined as long-lived and quiescent cells that are poised to quickly respond to antigen upon recall (2–5). Both memory B cells and antibody-secreting cells (ASCs) are the product of antigen activation and, most often, interaction with cognate T helper cells.

Detailed explanation-4: -B cells control the antigen-antibody response that is specific to the offending antigen and are said to have “memory.” Plasma cells (fully differentiated B cells) are similar in appearance to lymphocytes.